Common Weakness Enumeration

CWE-305

Allowed

Authentication Bypass by Primary Weakness

Abstraction: Base · Status: Draft

The authentication algorithm is sound, but the implemented mechanism can be bypassed as the result of a separate weakness that is primary to the authentication error.

316 vulnerabilities reference this CWE, most recent first.

CVE-2026-3047 (GCVE-0-2026-3047)

Vulnerability from cvelistv5 – Published: 2026-03-05 18:28 – Updated: 2026-07-15 01:09
VLAI
Title
Org.keycloak.broker.saml: keycloak saml broker: authentication bypass due to disabled saml client completing idp-initiated login
Summary
A flaw was found in org.keycloak.broker.saml. When a disabled Security Assertion Markup Language (SAML) client is configured as an Identity Provider (IdP)-initiated broker landing target, it can still complete the login process and establish a Single Sign-On (SSO) session. This allows a remote attacker to gain unauthorized access to other enabled clients without re-authentication, effectively bypassing security restrictions.
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-03-06 18:13 UTC
CWE
  • CWE-305 - Authentication Bypass by Primary Weakness
References
URL Tags
https://access.redhat.com/errata/RHSA-2026:3925 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:3926 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:3947 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:3948 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/security/cve/CVE-2026-3047 vdb-entryx_refsource_REDHAT
https://bugzilla.redhat.com/show_bug.cgi?id=2441966 issue-trackingx_refsource_REDHAT
https://security.access.redhat.com/data/csaf/v2/v… x_sadp-csaf-vex
Impacted products
Vendor Product Version
Red Hat Red Hat build of Keycloak 26.2 Unaffected: 26.2.14-1 , < * (rpm)
    cpe:/a:redhat:build_keycloak:26.2::el9
Create a notification for this product.
Red Hat Red Hat build of Keycloak 26.2 Unaffected: 26.2-16 , < * (rpm)
    cpe:/a:redhat:build_keycloak:26.2::el9
Create a notification for this product.
Red Hat Red Hat build of Keycloak 26.2.14     cpe:/a:redhat:build_keycloak:26.2::el9
Create a notification for this product.
Red Hat Red Hat build of Keycloak 26.4 Unaffected: 26.4.10-1 , < * (rpm)
    cpe:/a:redhat:build_keycloak:26.4::el9
Create a notification for this product.
Red Hat Red Hat build of Keycloak 26.4 Unaffected: 26.4-12 , < * (rpm)
    cpe:/a:redhat:build_keycloak:26.4::el9
Create a notification for this product.
Red Hat Red Hat build of Keycloak 26.4.10     cpe:/a:redhat:build_keycloak:26.4::el9
Create a notification for this product.
Date Public
2026-03-05 11:24
Show details on NVD website

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CVE-2026-2652 (GCVE-0-2026-2652)

Vulnerability from cvelistv5 – Published: 2026-05-15 02:13 – Updated: 2026-05-15 13:22
VLAI
Title
Authentication Bypass in mlflow/mlflow
Summary
A vulnerability in mlflow/mlflow versions 3.9.0 and earlier allows unauthenticated access to certain FastAPI routes when the server is started with authentication enabled (`--app-name basic-auth`) and served via uvicorn (ASGI). The FastAPI permission middleware only enforces authentication on `/gateway/` routes, leaving other routes such as the Job API (`/ajax-api/3.0/jobs/*`) and the OpenTelemetry trace ingestion API (`/v1/traces`) unprotected. This allows unauthenticated remote attackers to submit jobs, read job results, cancel running jobs, and inject arbitrary trace data into experiments. The issue arises from an architectural mismatch between Flask and FastAPI authentication mechanisms, where the `_find_fastapi_validator()` function fails to handle non-`/gateway/` paths, resulting in a complete authentication bypass. This vulnerability is fixed in version 3.10.0.
SSVC
Exploitation: poc Automatable: yes Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-05-15 13:22 UTC
CWE
  • CWE-305 - Authentication Bypass by Primary Weakness
Impacted products
Vendor Product Version
mlflow mlflow/mlflow Affected: unspecified , < 3.10.0 (custom)
Create a notification for this product.
Show details on NVD website

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        {
          "product": "mlflow/mlflow",
          "vendor": "mlflow",
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              "version": "unspecified",
              "versionType": "custom"
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        }
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        }
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            "attackVector": "NETWORK",
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        "orgId": "c09c270a-b464-47c1-9133-acb35b22c19a",
        "shortName": "@huntr_ai"
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          "url": "https://huntr.com/bounties/5aeff5f0-49c7-4180-b5cb-c9a046f16756"
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    "dateReserved": "2026-02-18T02:53:33.607Z",
    "dateUpdated": "2026-05-15T13:22:21.060Z",
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CVE-2026-1965 (GCVE-0-2026-1965)

Vulnerability from cvelistv5 – Published: 2026-03-11 10:08 – Updated: 2026-09-15 06:02
VLAI
Title
bad reuse of HTTP Negotiate connection
Summary
libcurl can in some circumstances reuse the wrong connection when asked to do an Negotiate-authenticated HTTP or HTTPS request. libcurl features a pool of recent connections so that subsequent requests can reuse an existing connection to avoid overhead. When reusing a connection a range of criterion must first be met. Due to a logical error in the code, a request that was issued by an application could wrongfully reuse an existing connection to the same server that was authenticated using different credentials. One underlying reason being that Negotiate sometimes authenticates *connections* and not *requests*, contrary to how HTTP is designed to work. An application that allows Negotiate authentication to a server (that responds wanting Negotiate) with `user1:password1` and then does another operation to the same server also using Negotiate but with `user2:password2` (while the previous connection is still alive) - the second request wrongly reused the same connection and since it then sees that the Negotiate negotiation is already made, it sends the request over that connection thinking it uses the user2 credentials when it is in fact still using the connection authenticated for user1... The set of authentication methods to use is set with `CURLOPT_HTTPAUTH`. Applications can disable libcurl's reuse of connections and thus mitigate this problem, by using one of the following libcurl options to alter how connections are or are not reused: `CURLOPT_FRESH_CONNECT`, `CURLOPT_MAXCONNECTS` and `CURLMOPT_MAX_HOST_CONNECTIONS` (if using the curl_multi API).
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-03-11 14:31 UTC
CWE
  • CWE-305 - Authentication Bypass by Primary Weakness
Impacted products
Vendor Product Version
curl curl Affected: 7.10.6 , < 8.14.2 (semver)
Affected: 8.15.0 , < 8.16.1 (semver)
Affected: 8.17.0 , < 8.19.0 (semver)
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curl curl Affected: e56ae1426cb7a0a4a427cf8d6099a821fdaae428 , < f1a39f221d57354990e3eeeddc3404aede2aff70 (git)
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curl curl Affected: 8.18.0
Affected: 8.17.0
Affected: 8.16.0
Affected: 8.15.0
Affected: 8.14.1
Affected: 8.14.0
Affected: 8.13.0
Affected: 8.12.1
Affected: 8.12.0
Affected: 8.11.1
Affected: 8.11.0
Affected: 8.10.1
Affected: 8.10.0
Affected: 8.9.1
Affected: 8.9.0
Affected: 8.8.0
Affected: 8.7.1
Affected: 8.7.0
Affected: 8.6.0
Affected: 8.5.0
Affected: 8.4.0
Affected: 8.3.0
Affected: 8.2.1
Affected: 8.2.0
Affected: 8.1.2
Affected: 8.1.1
Affected: 8.1.0
Affected: 8.0.1
Affected: 8.0.0
Affected: 7.88.1
Affected: 7.88.0
Affected: 7.87.0
Affected: 7.86.0
Affected: 7.85.0
Affected: 7.84.0
Affected: 7.83.1
Affected: 7.83.0
Affected: 7.82.0
Affected: 7.81.0
Affected: 7.80.0
Affected: 7.79.1
Affected: 7.79.0
Affected: 7.78.0
Affected: 7.77.0
Affected: 7.76.1
Affected: 7.76.0
Affected: 7.75.0
Affected: 7.74.0
Affected: 7.73.0
Affected: 7.72.0
Affected: 7.71.1
Affected: 7.71.0
Affected: 7.70.0
Affected: 7.69.1
Affected: 7.69.0
Affected: 7.68.0
Affected: 7.67.0
Affected: 7.66.0
Affected: 7.65.3
Affected: 7.65.2
Affected: 7.65.1
Affected: 7.65.0
Affected: 7.64.1
Affected: 7.64.0
Affected: 7.63.0
Affected: 7.62.0
Affected: 7.61.1
Affected: 7.61.0
Affected: 7.60.0
Affected: 7.59.0
Affected: 7.58.0
Affected: 7.57.0
Affected: 7.56.1
Affected: 7.56.0
Affected: 7.55.1
Affected: 7.55.0
Affected: 7.54.1
Affected: 7.54.0
Affected: 7.53.1
Affected: 7.53.0
Affected: 7.52.1
Affected: 7.52.0
Affected: 7.51.0
Affected: 7.50.3
Affected: 7.50.2
Affected: 7.50.1
Affected: 7.50.0
Affected: 7.49.1
Affected: 7.49.0
Affected: 7.48.0
Affected: 7.47.1
Affected: 7.47.0
Affected: 7.46.0
Affected: 7.45.0
Affected: 7.44.0
Affected: 7.43.0
Affected: 7.42.1
Affected: 7.42.0
Affected: 7.41.0
Affected: 7.40.0
Affected: 7.39.0
Affected: 7.38.0
Affected: 7.37.1
Affected: 7.37.0
Affected: 7.36.0
Affected: 7.35.0
Affected: 7.34.0
Affected: 7.33.0
Affected: 7.32.0
Affected: 7.31.0
Affected: 7.30.0
Affected: 7.29.0
Affected: 7.28.1
Affected: 7.28.0
Affected: 7.27.0
Affected: 7.26.0
Affected: 7.25.0
Affected: 7.24.0
Affected: 7.23.1
Affected: 7.23.0
Affected: 7.22.0
Affected: 7.21.7
Affected: 7.21.6
Affected: 7.21.5
Affected: 7.21.4
Affected: 7.21.3
Affected: 7.21.2
Affected: 7.21.1
Affected: 7.21.0
Affected: 7.20.1
Affected: 7.20.0
Affected: 7.19.7
Affected: 7.19.6
Affected: 7.19.5
Affected: 7.19.4
Affected: 7.19.3
Affected: 7.19.2
Affected: 7.19.1
Affected: 7.19.0
Affected: 7.18.2
Affected: 7.18.1
Affected: 7.18.0
Affected: 7.17.1
Affected: 7.17.0
Affected: 7.16.4
Affected: 7.16.3
Affected: 7.16.2
Affected: 7.16.1
Affected: 7.16.0
Affected: 7.15.5
Affected: 7.15.4
Affected: 7.15.3
Affected: 7.15.2
Affected: 7.15.1
Affected: 7.15.0
Affected: 7.14.1
Affected: 7.14.0
Affected: 7.13.2
Affected: 7.13.1
Affected: 7.13.0
Affected: 7.12.3
Affected: 7.12.2
Affected: 7.12.1
Affected: 7.12.0
Affected: 7.11.2
Affected: 7.11.1
Affected: 7.11.0
Affected: 7.10.8
Affected: 7.10.7
Affected: 7.10.6
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Show details on NVD website

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              "version": "7.85.0"
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              "status": "affected",
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              "version": "7.81.0"
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            {
              "status": "affected",
              "version": "7.80.0"
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              "status": "affected",
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              "version": "7.57.0"
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              "version": "7.53.1"
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              "status": "affected",
              "version": "7.53.0"
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              "status": "affected",
              "version": "7.52.1"
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            {
              "status": "affected",
              "version": "7.52.0"
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            {
              "status": "affected",
              "version": "7.51.0"
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              "status": "affected",
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              "status": "affected",
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              "status": "affected",
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        "id": "CURL-CVE-2026-1965",
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    "dateUpdated": "2026-09-15T06:02:49.175Z",
    "state": "PUBLISHED"
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CVE-2026-1713 (GCVE-0-2026-1713)

Vulnerability from cvelistv5 – Published: 2026-03-03 20:28 – Updated: 2026-03-03 20:49
VLAI
Title
IBM MQ is affected by an authority vulnerablility
Summary
IBM MQ 9.1.0.0 through 9.1.0.33 LTS, 9.2.0.0 through 9.2.0.40 LTS, 9.3.0.0 through 9.3.0.36 LTS, 9.30.0 through 9.3.5.1 CD, 9.4.0.0 through 9.4.0.17 LTS, and 9.4.0.0 through 9.4.4.1 CD
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-03-03 20:49 UTC
CWE
  • CWE-305 - Authentication Bypass by Primary Weakness
References
URL Tags
https://www.ibm.com/support/pages/node/7261944 vendor-advisorypatch
Impacted products
Vendor Product Version
IBM MQ Affected: 9.1.0.0 , ≤ 9.1.0.33 LTS (semver)
Affected: 9.2.0.0 , ≤ 9.2.0.40 LTS (semver)
Affected: 9.3.0.0 , ≤ 9.3.0.36 LTS (semver)
Affected: 9.30.0 , ≤ 9.3.5.1 CD (semver)
Affected: 9.4.0.0 , ≤ 9.4.0.17 LTS (semver)
Affected: 9.4.0.0 , ≤ 9.4.4.1 CD (semver)
    cpe:2.3:a:ibm:mq:9.1.0.0:*:*:*:*:*:*:*
    cpe:2.3:a:ibm:mq:9.1.0.33:*:*:*:*:*:*:*
    cpe:2.3:a:ibm:mq:9.2.0.0:*:*:*:*:*:*:*
    cpe:2.3:a:ibm:mq:9.2.0.40:*:*:*:*:*:*:*
    cpe:2.3:a:ibm:mq:9.3.0.0:*:*:*:*:*:*:*
    cpe:2.3:a:ibm:mq:9.3.0.36:*:*:*:*:*:*:*
    cpe:2.3:a:ibm:mq:9.30.0:*:*:*:*:*:*:*
    cpe:2.3:a:ibm:mq:9.3.5.1:*:*:*:*:*:*:*
    cpe:2.3:a:ibm:mq:9.4.0.0:*:*:*:*:*:*:*
    cpe:2.3:a:ibm:mq:9.4.0.17:*:*:*:*:*:*:*
    cpe:2.3:a:ibm:mq:9.4.4.1:*:*:*:*:*:*:*
Create a notification for this product.
Show details on NVD website

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CVE-2026-1621 (GCVE-0-2026-1621)

Vulnerability from cvelistv5 – Published: 2026-08-14 14:08 – Updated: 2026-08-14 14:37
VLAI
Title
Register Bypass in Universal Sotware's E-Municipality
Summary
Authentication bypass by primary weakness vulnerability in Universal Software Inc. E-Municipality allows Exploitation of Trusted Identifiers. This issue affects E-Municipality: from 20251127 before 20260204.
SSVC
Exploitation: none Automatable: yes Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-14 14:37 UTC
CWE
  • CWE-305 - Authentication bypass by primary weakness
References
Impacted products
Vendor Product Version
Universal Software Inc. E-Municipality Affected: 20251127 , < 20260204 (custom)
Create a notification for this product.
Date Public
2026-08-14 14:02
Show details on NVD website

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CVE-2026-1290 (GCVE-0-2026-1290)

Vulnerability from cvelistv5 – Published: 2026-01-21 15:25 – Updated: 2026-01-21 15:49
VLAI
Title
[PI141230] Fixed A broken access control issue.
Summary
Authentication Bypass by Primary Weakness vulnerability in Jamf Jamf Pro allows unspecified impact.This issue affects Jamf Pro: from 11.20 through 11.24.
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-01-21 15:48 UTC
CWE
  • CWE-305 - Authentication Bypass by Primary Weakness
Impacted products
Vendor Product Version
Jamf Jamf Pro Affected: 11.20 , ≤ 11.24 (custom)
Create a notification for this product.
Date Public
2026-01-20 15:10
Show details on NVD website

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CVE-2026-0869 (GCVE-0-2026-0869)

Vulnerability from cvelistv5 – Published: 2026-03-03 19:59 – Updated: 2026-03-04 21:19
VLAI
Title
Application User custom defined accounts are not properly password protected in Brocade ASCG 3.4.0
Summary
Authentication bypass in Brocade ASCG 3.4.0 Could allow an unauthorized user to perform ASCG operations related to Brocade Support Link(BSL) and streaming configuration. and could even disable the ASCG application or disable use of BSL data collection on Brocade switches within the fabric.
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-03-04 21:19 UTC
CWE
  • CWE-305 - Authentication Bypass by Primary Weakness
Impacted products
Vendor Product Version
Brocade ASCG Affected: 3.4.0
Create a notification for this product.
Show details on NVD website

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CVE-2025-68609 (GCVE-0-2025-68609)

Vulnerability from cvelistv5 – Published: 2026-01-22 19:06 – Updated: 2026-01-22 19:33
VLAI
Title
Authentication bypass in Aries due to misconfiguration
Summary
A vulnerability in Palantir's Aries service allowed unauthenticated access to log viewing and management functionality on Apollo instances using default configuration. The defect resulted in both authentication and authorization checks being bypassed, potentially allowing any network-accessible client to view system logs and perform operations without valid credentials. No evidence of exploitation was identified during the vulnerability window.
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-01-22 19:29 UTC
CWE
  • CWE-305 - The authentication algorithm is sound, but the implemented mechanism can be bypassed as the result of a separate weakness that is primary to the authentication error.
Impacted products
Vendor Product Version
Palantir com.palantir.aries:aries Unaffected: 1.554.0 , < * (semver)
Create a notification for this product.
Show details on NVD website

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CVE-2025-68435 (GCVE-0-2025-68435)

Vulnerability from cvelistv5 – Published: 2025-12-17 23:10 – Updated: 2025-12-18 15:33
VLAI
Title
Zerobyte has Authentication Bypass by Primary Weakness
Summary
Zerobyte is a backup automation tool Zerobyte versions prior to 0.18.5 and 0.19.0 contain an authentication bypass vulnerability where authentication middleware is not properly applied to API endpoints. This results in certain API endpoints being accessible without valid session credentials. This is dangerous for those who have exposed Zerobyte to be used outside of their internal network. A fix has been applied in both version 0.19.0 and 0.18.5. If immediate upgrade is not possible, restrict network access to the Zerobyte instance to trusted networks only using firewall rules or network segmentation. This is only a temporary mitigation; upgrading is strongly recommended.
SSVC
Exploitation: none Automatable: yes Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-12-18 15:31 UTC
CWE
  • CWE-305 - Authentication Bypass by Primary Weakness
Impacted products
Vendor Product Version
nicotsx zerobyte Affected: < 0.18.5
Create a notification for this product.
Show details on NVD website

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CVE-2025-62772 (GCVE-0-2025-62772)

Vulnerability from cvelistv5 – Published: 2025-10-22 00:00 – Updated: 2025-10-22 15:52
VLAI
Summary
On Mercku M6a devices through 2.1.0, session tokens remain valid for at least months in some cases.
SSVC
Exploitation: poc Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2025-10-22 15:51 UTC
CWE
  • CWE-305 - Authentication Bypass by Primary Weakness
Impacted products
Vendor Product Version
Mercku M6a Affected: 0 , ≤ 2.1.0 (custom)
Create a notification for this product.
Show details on NVD website

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No mitigation information available for this CWE.

No CAPEC attack patterns related to this CWE.