Common Weakness Enumeration

CWE-319

Allowed

Cleartext Transmission of Sensitive Information

Abstraction: Base · Status: Draft

The product transmits sensitive or security-critical data in cleartext in a communication channel that can be sniffed by unauthorized actors.

1254 vulnerabilities reference this CWE, most recent first.

CVE-2026-55860 (GCVE-0-2026-55860)

Vulnerability from cvelistv5 – Published: 2026-08-28 22:50 – Updated: 2026-08-31 14:05

Title

MariaDB Connector/R2DBC: Cleartext password disclosure to a man-in-the-middle server (clear-text auth plugins not gated on a secure transport)

Summary

MariaDB Connector/R2DBC is a non-blocking MariaDB and MySQL client implemented in Java. Prior to 1.4.1, org.mariadb:r2dbc-mariadb does not gate clear-text password authentication plugins on transport encryption because the AuthenticationPlugin interface has no capability for a plugin to require a secure connection. A hostile or man-in-the-middle MariaDB server can send an AuthSwitchRequest naming mysql_clear_password or dialog (PAM) over a plain-TCP unencrypted connection, and AuthenticationFlow permits ClearPasswordPluginFlow or PamPluginFlow to return the user's password as cleartext bytes on the wire. The disclosed credentials can subsequently be used to authenticate directly to the database server. This issue is fixed in version 1.4.1.

Severity

5.9 (Medium)


                        
                          CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-08-31 14:05 UTC

CWE

CWE-319 - Cleartext Transmission of Sensitive Information
CWE-522 - Insufficiently Protected Credentials

Assigner

GitHub_M mitre root Scorecard

References

5 references

URL	Tags
https://github.com/mariadb-corporation/mariadb-co…	x_refsource_CONFIRM
https://github.com/mariadb-corporation/mariadb-co…	x_refsource_MISC
https://hackerone.com/reports/3784556	x_refsource_MISC
https://github.com/mariadb-corporation/mariadb-co…	x_refsource_MISC
https://jira.mariadb.org/browse/R2DBC-115	x_refsource_MISC

Impacted products

2 products

Vendor	Product	Version
mariadb-corporation	mariadb-connector-r2dbc	Affected: < 1.4.1
org.mariadb	r2dbc-mariadb	Affected: < 1.4.1

Show details on NVD website

JSON

To clipboard

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CVE-2026-55857 (GCVE-0-2026-55857)

Vulnerability from cvelistv5 – Published: 2026-08-28 22:44 – Updated: 2026-08-31 18:22

Title

MariaDB Connector/J: Cleartext Transmission of Sensitive Information and Insufficiently Protected Credentials

Summary

MariaDB Connector/J is used to connect applications developed in Java to MariaDB and MySQL databases. Prior to 2.7.14, 3.3.5, 3.4.3, and 3.5.9, PAM dialog authentication can be coerced into transmitting the account password over an insecure connection. The mysql_clear_password plugin is gated behind a secure transport, but the sibling PAM handler SendPamAuthPacketFactory, named dialog by the server, does not declare that requirement and inherits the default secure-required value false; older branches implement the same affected behavior in SendPamAuthPacket. A hostile or man-in-the-middle server can send an Authentication Switch Request for dialog over plain TCP, causing the driver to return the user's password in cleartext when sslMode=DISABLE and restrictedAuth=null, which is the default configuration. Properly verified TLS and local Unix sockets are not exposed to this transport vector. This issue is fixed in versions 2.7.14, 3.3.5, 3.4.3, and 3.5.9.

Severity

5.9 (Medium)


                        
                          CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-08-31 18:22 UTC

CWE

CWE-319 - Cleartext Transmission of Sensitive Information
CWE-522 - Insufficiently Protected Credentials

Assigner

GitHub_M mitre root Scorecard

References

6 references

URL	Tags
https://github.com/mariadb-corporation/mariadb-co…	x_refsource_CONFIRM
https://github.com/mariadb-corporation/mariadb-co…	x_refsource_MISC
https://github.com/mariadb-corporation/mariadb-co…	x_refsource_MISC
https://github.com/mariadb-corporation/mariadb-co…	x_refsource_MISC
https://github.com/mariadb-corporation/mariadb-co…	x_refsource_MISC
https://jira.mariadb.org/browse/CONJ-1320	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
mariadb-corporation	mariadb-connector-j	Affected: < 2.7.14 Affected: >= 3.0.0, < 3.3.5 Affected: >= 3.4.0, < 3.4.3 Affected: >= 3.5.0, < 3.5.9

Show details on NVD website

JSON

To clipboard

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CVE-2026-55854 (GCVE-0-2026-55854)

Vulnerability from cvelistv5 – Published: 2026-08-28 22:03 – Updated: 2026-08-31 18:53

Title

MariaDB Connector/Node.js: Cleartext Transmission of Sensitive Information and Insufficiently Protected Credentials in mariadb

Summary

MariaDB Connector/Node.js is used to connect applications developed on Node.js to MariaDB and MySQL databases. Prior to 3.2.4, 3.3.3, 3.4.6, and 3.5.3, MariaDB Connector/Node.js can disclose an account password when PAM dialog authentication is negotiated over an insecure transport. In lib/cmd/handshake/auth/pam-password-auth.js and lib/cmd/handshake/authentication.js, the SendPamAuthPacketFactory behavior for the server-side plugin dialog lacked the secure-transport gate applied to mysql_clear_password. With the default sslMode=DISABLE and restrictedAuth=null settings, a hostile or on-path server can send an Authentication Switch Request for dialog over plain TCP, causing the connector to return the account password in cleartext. Properly verified TLS and a local Unix socket prevent this path, while fingerprint-only server identity validation is not sufficient. This issue is fixed in versions 3.2.4, 3.3.3, 3.4.6, and 3.5.3.

Severity

5.9 (Medium)


                        
                          CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-08-31 15:21 UTC

CWE

CWE-319 - Cleartext Transmission of Sensitive Information
CWE-522 - Insufficiently Protected Credentials

Assigner

GitHub_M mitre root Scorecard

References

10 references

URL	Tags
https://github.com/mariadb-corporation/mariadb-co…	x_refsource_CONFIRM
https://github.com/mariadb-corporation/mariadb-co…	x_refsource_MISC
https://github.com/mariadb-corporation/mariadb-co…	x_refsource_MISC
https://github.com/mariadb-corporation/mariadb-co…	x_refsource_MISC
https://github.com/mariadb-corporation/mariadb-co…	x_refsource_MISC
https://github.com/mariadb-corporation/mariadb-co…	x_refsource_MISC
https://github.com/mariadb-corporation/mariadb-co…	x_refsource_MISC
https://github.com/mariadb-corporation/mariadb-co…	x_refsource_MISC
https://github.com/mariadb-corporation/mariadb-co…	x_refsource_MISC
https://jira.mariadb.org/browse/CONJS-353	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
mariadb-corporation	mariadb-connector-nodejs	Affected: < 3.2.4 Affected: >= 3.3.0, < 3.3.3 Affected: >= 3.4.0, < 3.4.6 Affected: >= 3.5.0, < 3.5.3

Show details on NVD website

JSON

To clipboard

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          "name": "https://github.com/mariadb-corporation/mariadb-connector-nodejs/security/advisories/GHSA-42r5-vhpq-m858",
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          "tags": [
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          "url": "https://github.com/mariadb-corporation/mariadb-connector-nodejs/releases/tag/3.3.3"
        },
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          "name": "https://github.com/mariadb-corporation/mariadb-connector-nodejs/releases/tag/3.4.6",
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        },
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          "name": "https://github.com/mariadb-corporation/mariadb-connector-nodejs/releases/tag/3.5.3",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/mariadb-corporation/mariadb-connector-nodejs/releases/tag/3.5.3"
        },
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          "name": "https://jira.mariadb.org/browse/CONJS-353",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://jira.mariadb.org/browse/CONJS-353"
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        "advisory": "GHSA-42r5-vhpq-m858",
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      },
      "title": "MariaDB Connector/Node.js: Cleartext Transmission of Sensitive Information and Insufficiently Protected Credentials in mariadb"
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CVE-2026-55844 (GCVE-0-2026-55844)

Vulnerability from cvelistv5 – Published: 2026-06-29 14:19 – Updated: 2026-06-30 19:02

Title

Home Assistant: iOS Companion App ignores internal SSID allowlist for connections – possible leak of access token and sensor data

Summary

Home Assistant is open source home automation software that puts local control and privacy first. Prior to 2025.5.0, The iOS companion app ignores the SSID allowlist for internal networks. The app uses SSID to detect when to use the internal URL, but whenever the app cannot find any other URL to be used, it fallbacks to the internal URL as well, which can expose user's token when connected to a not secure network. This vulnerability is fixed in 2025.5.0.

Severity

7.5 (High)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

SSVC

Exploitation: poc Automatable: yes Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-06-30 19:01 UTC

CWE

CWE-319 - Cleartext Transmission of Sensitive Information

Assigner

GitHub_M mitre root Scorecard

References

1 reference

URL	Tags
https://github.com/home-assistant/core/security/a…	x_refsource_CONFIRM

Impacted products

1 product

Vendor	Product	Version
home-assistant	core	Affected: < 2025.5.0

Show details on NVD website

JSON

To clipboard

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CVE-2026-55568 (GCVE-0-2026-55568)

Vulnerability from cvelistv5 – Published: 2026-06-23 14:54 – Updated: 2026-06-23 15:44

Title

Guzzle: Silent HTTPS-Proxy Downgrade to Cleartext

Summary

Guzzle is an extensible PHP HTTP client. Prior to 7.12.1, in certain configurations, traffic expected to be protected by TLS on the hop to the proxy is transmitted in cleartext. Proxy authentication credentials (the Proxy-Authorization header, proxy userinfo in the proxy URL, or CURLOPT_PROXYUSERPWD) are sent without encryption, and the CONNECT target host and port for tunneled HTTPS requests are exposed. The built-in cURL handlers (GuzzleHttp\Handler\CurlHandler and GuzzleHttp\Handler\CurlMultiHandler, used by default whenever the PHP cURL extension is available) accept an https:// proxy. libcurl older than 7.50.2 silently treats an https:// proxy as a plaintext http:// proxy. The TLS connection to the proxy is never established, and the proxy leg is cleartext with no error or warning. An application is affected when it sends requests through one of the built-in cURL handlers, configures an https:// proxy expecting the proxy connection itself to be encrypted, and runs with libcurl older than 7.50.2. This vulnerability is fixed in 7.12.1.

Severity

5.9 (Medium)


                        
                          CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-06-23 15:44 UTC

CWE

CWE-311 - Missing Encryption of Sensitive Data
CWE-319 - Cleartext Transmission of Sensitive Information
CWE-636 - Not Failing Securely ('Failing Open')

Assigner

GitHub_M mitre root Scorecard

References

1 reference

URL	Tags
https://github.com/guzzle/guzzle/security/advisor…	x_refsource_CONFIRM

Impacted products

1 product

Vendor	Product	Version
guzzle	guzzle	Affected: < 7.12.1

Show details on NVD website

JSON

To clipboard

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CVE-2026-55396 (GCVE-0-2026-55396)

Vulnerability from cvelistv5 – Published: 2026-10-01 19:59 – Updated: 2026-10-01 20:24

Title

Unencrypted UDP Control Traffic in Teledyne FLIR Robots running Aware2

Summary

Cleartext transmission without a cryptographic integrity check in operator control unit to robot UDP traffic in Teledyne FLIR Aware2 versions through 6.9.0.2 (PackBot) and 1.7.9 (FirstLook) allows adjacent unauthenticated attackers to intercept, hijack, or modify control traffic against Teledyne FLIR PackBot and FirstLook robots running this software via sniffing or hijacking network traffic.

Severity

8.5 (High)


                        
                          CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:L/VI:H/VA:H/SC:L/SI:H/SA:H

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-10-01 20:24 UTC

CWE

CWE-319 - Cleartext Transmission of Sensitive Information

Assigner

Mandiant Google root Scorecard

References

1 reference

URL	Tags
https://github.com/mandiant/Vulnerability-Disclos…	third-party-advisory

Impacted products

1 product

Vendor	Product	Version
Teledyne FLIR	Aware2	Affected: 0 , ≤ 6.9.0.2 (semver) Affected: 0 , ≤ 1.7.9 (semver)

Show details on NVD website

JSON

To clipboard

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CVE-2026-55394 (GCVE-0-2026-55394)

Vulnerability from cvelistv5 – Published: 2026-10-01 19:59 – Updated: 2026-10-01 20:26

Title

Unencrypted 802.11 Network in Teledyne FLIR Robots running Aware2

Summary

Unencrypted traffic in the 802.11 network of Teledyne FLIR Aware2 versions through 6.9.0.2 allows adjacent unauthenticated attackers to intercept, hijack, or modify session traffic against Teledyne FLIR PackBot robots running this software via sniffing or hijacking network traffic.

Severity

5.3 (Medium)


                        
                          CVSS:4.0/AV:A/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:L/SC:L/SI:N/SA:L

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-10-01 20:25 UTC

CWE

CWE-319 - Cleartext Transmission of Sensitive Information

Assigner

Mandiant Google root Scorecard

References

1 reference

URL	Tags
https://github.com/mandiant/Vulnerability-Disclos…	third-party-advisory

Impacted products

1 product

Vendor	Product	Version
Teledyne FLIR	Aware2	Affected: 0 , ≤ 6.9.0.2 (semver)

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-55394",
                "options": [
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                    "Exploitation": "none"
                  },
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                    "Technical Impact": "partial"
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              "base64": false,
              "type": "text/html",
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            }
          ],
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        }
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      "impacts": [
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          "capecId": "CAPEC-158",
          "descriptions": [
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              "lang": "en",
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            "version": "4.0",
            "vulnAvailabilityImpact": "LOW",
            "vulnConfidentialityImpact": "LOW",
            "vulnIntegrityImpact": "NONE",
            "vulnerabilityResponseEffort": "NOT_DEFINED"
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          "scenarios": [
            {
              "lang": "en",
              "value": "GENERAL"
            }
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              "description": "CWE-319: Cleartext Transmission of Sensitive Information",
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      "providerMetadata": {
        "dateUpdated": "2026-10-01T19:59:27.660Z",
        "orgId": "027e81ed-0dd4-4685-ab4d-884aec5bb484",
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          "url": "https://github.com/mandiant/Vulnerability-Disclosures/blob/master/2026/MNDT-2026-0030.md"
        }
      ],
      "source": {
        "discovery": "UNKNOWN"
      },
      "title": "Unencrypted 802.11 Network in Teledyne FLIR Robots running Aware2",
      "x_generator": {
        "engine": "Vulnogram 1.0.5"
      }
    }
  },
  "cveMetadata": {
    "assignerOrgId": "027e81ed-0dd4-4685-ab4d-884aec5bb484",
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    "dateReserved": "2026-06-16T19:45:37.214Z",
    "dateUpdated": "2026-10-01T20:26:08.550Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

CVE-2026-54586 (GCVE-0-2026-54586)

Vulnerability from cvelistv5 – Published: 2026-09-17 16:53 – Updated: 2026-09-21 20:57

Title

mport permits repository and package mirror fetches over insecure transport

Summary

mport is the MidnightBSD Package Manager. Prior to 2.7.8, the mport_fetch_index(), mport_fetch_bootstrap_index(), and mport_fetch_bundle() paths in libmport/fetch.c accepted non-HTTPS repository and package mirror URLs without a url_is_https() enforcement check. When a cleartext URL was configured or returned by mirror data, a network-positioned attacker could tamper with package index or package download traffic and compromise package selection or integrity. This issue is fixed in version 2.7.8.

Severity

6 (Medium)


                        
                          CVSS:4.0/AV:A/AC:L/AT:P/PR:N/UI:N/VC:N/VI:H/VA:L/SC:N/SI:N/SA:N

SSVC

Exploitation: none Automatable: yes Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-09-21 20:57 UTC

CWE

CWE-319 - Cleartext Transmission of Sensitive Information
CWE-345 - Insufficient Verification of Data Authenticity

Assigner

GitHub_M mitre root Scorecard

References

4 references

URL	Tags
https://github.com/MidnightBSD/mport/security/adv…	x_refsource_CONFIRM
https://github.com/MidnightBSD/mport/pull/121	x_refsource_MISC
https://github.com/MidnightBSD/mport/commit/9b4d0…	x_refsource_MISC
https://github.com/MidnightBSD/mport/releases/tag/2.7.8	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
MidnightBSD	mport	Affected: < 2.7.8

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-54586",
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                    "Exploitation": "none"
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                    "Automatable": "yes"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-09-21T20:57:25.913923Z",
                "version": "2.0.3"
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        "title": "CISA ADP Vulnrichment"
      }
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          "product": "mport",
          "vendor": "MidnightBSD",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 2.7.8"
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          "lang": "en",
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        }
      ],
      "metrics": [
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            "attackComplexity": "LOW",
            "attackRequirements": "PRESENT",
            "attackVector": "ADJACENT",
            "baseScore": 6,
            "baseSeverity": "MEDIUM",
            "privilegesRequired": "NONE",
            "subAvailabilityImpact": "NONE",
            "subConfidentialityImpact": "NONE",
            "subIntegrityImpact": "NONE",
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            "vectorString": "CVSS:4.0/AV:A/AC:L/AT:P/PR:N/UI:N/VC:N/VI:H/VA:L/SC:N/SI:N/SA:N",
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            "vulnConfidentialityImpact": "NONE",
            "vulnIntegrityImpact": "HIGH"
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              "description": "CWE-319: Cleartext Transmission of Sensitive Information",
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        },
        {
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              "description": "CWE-345: Insufficient Verification of Data Authenticity",
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      ],
      "providerMetadata": {
        "dateUpdated": "2026-09-17T16:53:24.229Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
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      },
      "references": [
        {
          "name": "https://github.com/MidnightBSD/mport/security/advisories/GHSA-v5pv-7gxw-74r5",
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            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/MidnightBSD/mport/security/advisories/GHSA-v5pv-7gxw-74r5"
        },
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          "name": "https://github.com/MidnightBSD/mport/pull/121",
          "tags": [
            "x_refsource_MISC"
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          "url": "https://github.com/MidnightBSD/mport/commit/9b4d0f9192b243ee32266afa36dce430b257b921"
        },
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          "name": "https://github.com/MidnightBSD/mport/releases/tag/2.7.8",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/MidnightBSD/mport/releases/tag/2.7.8"
        }
      ],
      "source": {
        "advisory": "GHSA-v5pv-7gxw-74r5",
        "discovery": "UNKNOWN"
      },
      "title": "mport permits repository and package mirror fetches over insecure transport"
    }
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  "cveMetadata": {
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    "dateReserved": "2026-06-15T19:15:27.344Z",
    "dateUpdated": "2026-09-21T20:57:35.734Z",
    "state": "PUBLISHED"
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}

CVE-2026-53624 (GCVE-0-2026-53624)

Vulnerability from cvelistv5 – Published: 2026-07-08 19:32 – Updated: 2026-07-10 14:57

Title

Fiber: HSTS header never set in helmet middleware due to incorrect protocol check

Summary

Fiber is an Express inspired web framework written in Go. Prior to 3.4.0, the helmet middleware in middleware/helmet/helmet.go never sets the Strict-Transport-Security response header even when HSTSMaxAge is configured because it checks c.Protocol() for https instead of c.Scheme(). This issue is fixed in version 3.4.0.

Severity

4.8 (Medium)


                        
                          CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N

SSVC

Exploitation: poc Automatable: no Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-07-10 14:57 UTC

CWE

CWE-319 - Cleartext Transmission of Sensitive Information

Assigner

GitHub_M mitre root Scorecard

References

4 references

URL	Tags
https://github.com/gofiber/fiber/security/advisor…	x_refsource_CONFIRM
https://github.com/gofiber/fiber/pull/4389	x_refsource_MISC
https://github.com/gofiber/fiber/commit/04dd4e775…	x_refsource_MISC
https://github.com/gofiber/fiber/releases/tag/v3.4.0	x_refsource_MISC

Impacted products

1 product

Vendor	Product	Version
gofiber	fiber	Affected: < 3.4.0

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-53624",
                "options": [
                  {
                    "Exploitation": "poc"
                  },
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                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-07-10T14:57:02.119046Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
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        "providerMetadata": {
          "dateUpdated": "2026-07-10T14:57:28.656Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
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        },
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            "tags": [
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        ],
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
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        {
          "product": "fiber",
          "vendor": "gofiber",
          "versions": [
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              "status": "affected",
              "version": "\u003c 3.4.0"
            }
          ]
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      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "Fiber is an Express inspired web framework written in Go. Prior to 3.4.0, the helmet middleware in middleware/helmet/helmet.go never sets the Strict-Transport-Security response header even when HSTSMaxAge is configured because it checks c.Protocol() for https instead of c.Scheme(). This issue is fixed in version 3.4.0."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "HIGH",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 4.8,
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            "integrityImpact": "LOW",
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            "scope": "UNCHANGED",
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            "vectorString": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:L/A:N",
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          "name": "https://github.com/gofiber/fiber/security/advisories/GHSA-gv83-gqw6-9j2c",
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          ],
          "url": "https://github.com/gofiber/fiber/security/advisories/GHSA-gv83-gqw6-9j2c"
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      "title": "Fiber: HSTS header never set in helmet middleware due to incorrect protocol check"
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    "assignerShortName": "GitHub_M",
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    "datePublished": "2026-07-08T19:32:08.191Z",
    "dateReserved": "2026-06-09T20:16:59.646Z",
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}

CVE-2026-50200 (GCVE-0-2026-50200)

Vulnerability from cvelistv5 – Published: 2026-06-17 21:44 – Updated: 2026-06-18 15:45

Title

Steeltoe's env sanitizer misses connection strings — leaks embedded DB passwords

Summary

Steeltoe is an open source project that provides a collection of libraries that helps users build cloud-native applications. In Steeltoe.Management.Endpoint prior to version 4.2.0 and Steeltoe.Management.EndpointCore prior to version 3.4.0, the `Sanitizer` component in the Environment actuator redacts configuration values by matching the configuration key name against a suffix list. The default list (`password`, `secret`, `key`, `token`, `.*credentials.*`, `vcap_services`) does not cover the standard .NET pattern `ConnectionStrings:<name>` or Steeltoe Connectors' `Steeltoe:Client:<type>:Default:ConnectionString`. There is no value-based scrubbing, so full connection string values including embedded `Password=` and `user:pass@host` segments are returned verbatim in `/actuator/env` responses. Steeltoe.Management.Endpoint 4.2.0 and Steeltoe.Management.EndpointCore 3.4.0 patch the issue. If an immediate upgrade is not possible: On the standard path, remove `env` from the actuator exposure list; add `.*connectionstring.*` to `KeysToSanitize` as a defense-in-depth measure for both paths; and/or require authorization on actuator endpoints.

Severity

7.5 (High)


                        
                          CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

SSVC

Exploitation: none Automatable: yes Technical Impact: partial

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-06-18 15:44 UTC

CWE

CWE-200 - Exposure of Sensitive Information to an Unauthorized Actor
CWE-319 - Cleartext Transmission of Sensitive Information

Assigner

GitHub_M mitre root Scorecard

References

3 references

URL	Tags
https://github.com/SteeltoeOSS/security-advisorie…	x_refsource_CONFIRM
https://github.com/SteeltoeOSS/Steeltoe/commit/be…	x_refsource_MISC
https://github.com/SteeltoeOSS/Steeltoe/commit/e5…	x_refsource_MISC

Impacted products

2 products

Vendor	Product	Version
SteeltoeOSS	Steeltoe.Management.Endpoint	Affected: < 4.2.0
SteeltoeOSS	Steeltoe.Management.EndpointCore	Affected: < 3.4.0

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-50200",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "yes"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-06-18T15:44:57.861073Z",
                "version": "2.0.3"
              },
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          }
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        "providerMetadata": {
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          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
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      }
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          "vendor": "SteeltoeOSS",
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            }
          ]
        },
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          "vendor": "SteeltoeOSS",
          "versions": [
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            }
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        }
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        }
      ],
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        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 7.5,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "NONE",
            "privilegesRequired": "NONE",
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            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
            "version": "3.1"
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          ]
        },
        {
          "descriptions": [
            {
              "cweId": "CWE-319",
              "description": "CWE-319: Cleartext Transmission of Sensitive Information",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-06-17T21:44:21.586Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
        {
          "name": "https://github.com/SteeltoeOSS/security-advisories/security/advisories/GHSA-q62h-354g-5r85",
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/SteeltoeOSS/security-advisories/security/advisories/GHSA-q62h-354g-5r85"
        },
        {
          "name": "https://github.com/SteeltoeOSS/Steeltoe/commit/bef9f14b710232fca3fbe87e48fdd1b9e6b60d43",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/SteeltoeOSS/Steeltoe/commit/bef9f14b710232fca3fbe87e48fdd1b9e6b60d43"
        },
        {
          "name": "https://github.com/SteeltoeOSS/Steeltoe/commit/e50cd31a429b191841120f0d38fa9dda8f751b0a",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/SteeltoeOSS/Steeltoe/commit/e50cd31a429b191841120f0d38fa9dda8f751b0a"
        }
      ],
      "source": {
        "advisory": "GHSA-q62h-354g-5r85",
        "discovery": "UNKNOWN"
      },
      "title": "Steeltoe\u0027s env sanitizer misses connection strings \u2014 leaks embedded DB passwords"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2026-50200",
    "datePublished": "2026-06-17T21:44:21.586Z",
    "dateReserved": "2026-06-03T22:05:13.645Z",
    "dateUpdated": "2026-06-18T15:45:27.834Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

Mitigation

Architecture and Design

Before transmitting, encrypt the data using reliable, confidentiality-protecting cryptographic protocols.

Mitigation

Implementation

When using web applications with SSL, use SSL for the entire session from login to logout, not just for the initial login page.

Mitigation

Implementation

When designing hardware platforms, ensure that approved encryption algorithms (such as those recommended by NIST) protect paths from security critical data to trusted user applications.

Mitigation

Testing

Use tools and techniques that require manual (human) analysis, such as penetration testing, threat modeling, and interactive tools that allow the tester to record and modify an active session. These may be more effective than strictly automated techniques. This is especially the case with weaknesses that are related to design and business rules.

Mitigation

Operation

Configure servers to use encrypted channels for communication, which may include SSL or other secure protocols.

CAPEC-102: Session Sidejacking

Session sidejacking takes advantage of an unencrypted communication channel between a victim and target system. The attacker sniffs traffic on a network looking for session tokens in unencrypted traffic. Once a session token is captured, the attacker performs malicious actions by using the stolen token with the targeted application to impersonate the victim. This attack is a specific method of session hijacking, which is exploiting a valid session token to gain unauthorized access to a target system or information. Other methods to perform a session hijacking are session fixation, cross-site scripting, or compromising a user or server machine and stealing the session token.

CAPEC-117: Interception

An adversary monitors data streams to or from the target for information gathering purposes. This attack may be undertaken to solely gather sensitive information or to support a further attack against the target. This attack pattern can involve sniffing network traffic as well as other types of data streams (e.g. radio). The adversary can attempt to initiate the establishment of a data stream or passively observe the communications as they unfold. In all variants of this attack, the adversary is not the intended recipient of the data stream. In contrast to other means of gathering information (e.g., targeting data leaks), the adversary must actively position themself so as to observe explicit data channels (e.g. network traffic) and read the content. However, this attack differs from a Adversary-In-the-Middle (CAPEC-94) attack, as the adversary does not alter the content of the communications nor forward data to the intended recipient.

CAPEC-383: Harvesting Information via API Event Monitoring

An adversary hosts an event within an application framework and then monitors the data exchanged during the course of the event for the purpose of harvesting any important data leaked during the transactions. One example could be harvesting lists of usernames or userIDs for the purpose of sending spam messages to those users. One example of this type of attack involves the adversary creating an event within the sub-application. Assume the adversary hosts a "virtual sale" of rare items. As other users enter the event, the attacker records via AiTM (CAPEC-94) proxy the user_ids and usernames of everyone who attends. The adversary would then be able to spam those users within the application using an automated script.

CAPEC-477: Signature Spoofing by Mixing Signed and Unsigned Content

An attacker exploits the underlying complexity of a data structure that allows for both signed and unsigned content, to cause unsigned data to be processed as though it were signed data.

CAPEC-65: Sniff Application Code

An adversary passively sniffs network communications and captures application code bound for an authorized client. Once obtained, they can use it as-is, or through reverse-engineering glean sensitive information or exploit the trust relationship between the client and server. Such code may belong to a dynamic update to the client, a patch being applied to a client component or any such interaction where the client is authorized to communicate with the server.

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