Common Weakness Enumeration

CWE-918

Allowed

Server-Side Request Forgery (SSRF)

Abstraction: Base · Status: Incomplete

The web server receives a URL or similar request from an upstream component and retrieves the contents of this URL, but it does not sufficiently ensure that the request is being sent to the expected destination.

6243 vulnerabilities reference this CWE, most recent first.

CVE-2026-75583 (GCVE-0-2026-75583)

Vulnerability from cvelistv5 – Published: 2026-08-19 16:35 – Updated: 2026-08-21 11:21
VLAI
Title
keeper.sh Calendar version prior to 2.18.14 SSRF Guard Bypass via DNS Rebinding
Summary
keeper.sh's calendar module version prior to 2.18.14 contains a server-side request forgery (SSRF) guard bypass vulnerability that allows authenticated attackers to reach private network addresses by exploiting a DNS rebinding attack against the two-phase URL validation and connection flow. The SSRF guard validates a hostname's resolved IP addresses but discards them before the actual HTTP connection is opened, allowing an attacker who controls authoritative DNS to return a public address during validation and a private address during the subsequent independent socket-level DNS resolution, causing the guard to pass while the outbound connection reaches internal infrastructure such as cloud instance metadata endpoints.
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-19 17:13 UTC
CWE
  • CWE-918 - Server-Side Request Forgery (SSRF)
Impacted products
Vendor Product Version
ridafkih keeper.sh Affected: 0 , < 2.18.14 (semver)
Create a notification for this product.
Date Public
2026-08-19 00:00
Show details on NVD website

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CVE-2026-75511 (GCVE-0-2026-75511)

Vulnerability from cvelistv5 – Published: 2026-09-22 15:49 – Updated: 2026-09-25 23:42
VLAI
Title
Novu: Server-Side Request Forgery (SSRF) via Chat Provider Webhook URLs
Summary
Novu provides an API for sending notifications through multiple channels. Prior to 3.18.0, Novu accepts chat webhook URLs from subscriber credentials.webhookUrl, channel endpoint endpoint.url, event payload.webhookUrl, and event overrides.webhookUrl, then passes the selected endpoint.url through send-message-chat.usecase.ts to raw HTTP requests in the Slack, Discord, Mattermost, Microsoft Teams, Grafana On-Call, Ryver, Rocket.Chat, GetStream, and Zulip providers. An authenticated user can supply an internal or otherwise restricted destination because these paths do not apply normalizeOutboundHttpUrl, assertSafeOutboundUrl, or the DNS-pinned safeOutboundJsonRequest protection used by the generic webhook providers. The Novu worker can consequently issue attacker-directed POST requests to internal network services and cause interactions or actions supported by those services. This issue is fixed in version 3.18.0.
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-25 23:41 UTC
CWE
  • CWE-918 - Server-Side Request Forgery (SSRF)
Impacted products
Show details on NVD website

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CVE-2026-75036 (GCVE-0-2026-75036)

Vulnerability from cvelistv5 – Published: 2026-09-03 15:15 – Updated: 2026-09-05 01:32
VLAI
Title
Fleet: DNS exfiltration via Sprig getHostByName in fleet.yaml Helm template preprocessing
Summary
A security vulnerability was discovered in Fleet's Helm template preprocessing where templates evaluated by the Fleet controller could reach network resources outside the management cluster. A user who can supply bundle content to a repository referenced by a `GitRepo` resource can cause the Fleet controller to: - Disclose cluster metadata available to the templating context. - Reveal information about hosts reachable from the controller's network position. Because the disclosure channel is name resolution, it may remain effective in environments where outbound traffic is otherwise restricted. The disclosed information is limited to values exposed to the Fleet templating context and to name resolution results. Integrity and availability of managed clusters are not affected. This issue affects Fleet: from 0.12.0 before 0.12.19, from 0.13.0 before 0.13.15, from 0.14.0 before 0.14.10, from 0.15.0 before 0.15.6, and from 0.16.0 before 0.16.1.
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-05 01:32 UTC
CWE
  • CWE-918 - Server-Side request forgery (SSRF)
  • CWE-1336 - Improper neutralization of special elements used in a template engine
References
Impacted products
Vendor Product Version
SUSE Fleet Affected: 0.12.0 , < 0.12.19 (semver)
Affected: 0.13.0 , < 0.13.15 (semver)
Affected: 0.14.0 , < 0.14.10 (semver)
Affected: 0.15.0 , < 0.15.6 (semver)
Affected: 0.16.0 , < 0.16.1 (semver)
Create a notification for this product.
Show details on NVD website

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CVE-2026-75006 (GCVE-0-2026-75006)

Vulnerability from cvelistv5 – Published: 2026-08-17 12:56 – Updated: 2026-08-17 14:06
VLAI
Summary
In Roundcube Webmail before 1.6.18 and 1.7.x before 1.7.3, insufficient Cascading Style Sheets (CSS) sanitization in HTML e-mail messages may lead to SSRF or Information Disclosure, e.g., if stylesheet links point to local network hosts. This issue exists because of insufficient fixes for CVE-2026-35540, CVE-2026-48843 and CVE-2026-62643.
SSVC
Exploitation: none Automatable: yes Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-17 14:06 UTC
CWE
  • CWE-918 - Server-Side Request Forgery (SSRF)
Impacted products
Vendor Product Version
Roundcube Webmail Affected: 1.6.0 , < 1.6.18 (semver)
Affected: 1.7.0 , < 1.7.3 (semver)
    cpe:2.3:a:roundcube:webmail:*:*:*:*:*:*:*:*
    cpe:2.3:a:roundcube:webmail:*:*:*:*:*:*:*:*
Create a notification for this product.
Show details on NVD website

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CVE-2026-74905 (GCVE-0-2026-74905)

Vulnerability from cvelistv5 – Published: 2026-08-18 11:19 – Updated: 2026-08-19 14:10
VLAI
Title
SiYuan before v3.7.4 SSRF via IPv6 Transition Address Bypass
Summary
SiYuan before v3.7.4 contains a server-side request forgery (SSRF) vulnerability in the isPrivateIP function in kernel/util/net.go, used by SSRFSafeDialer to enforce SSRF protection in SafeMode. The function only checks for loopback, link-local unicast, private, and unspecified addresses and does not recognize IPv6 transition addresses (NAT64 64:ff9b::/96, 6to4 2002::/16, Teredo 2001::/32) that embed private IPv4 destinations. When SafeMode is enabled, an authenticated attacker can bypass the SSRF guard via the network forward proxy, WebSocket proxy, or SSE proxy endpoints by supplying a URL whose hostname resolves to such a transition address, reaching internal services and cloud metadata endpoints (e.g., 169.254.169.254). Because the forward proxy returns the full response body, this is a full-read SSRF that can be used to steal instance credentials, reach internal services, and port-scan internal infrastructure.
SSVC
Exploitation: poc Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-19 14:09 UTC
CWE
  • CWE-918 - Server-Side Request Forgery (SSRF)
References
Impacted products
Vendor Product Version
siyuan-note siyuan Affected: 0 , < 3.7.4 (semver)
Unaffected: 3.7.4 (semver)
    cpe:2.3:a:b3log:siyuan:*:*:*:*:*:*:*:*
Create a notification for this product.
Date Public
2026-08-04 00:00
Show details on NVD website

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CVE-2026-74858 (GCVE-0-2026-74858)

Vulnerability from cvelistv5 – Published: 2026-08-17 15:15 – Updated: 2026-08-18 13:37
VLAI
Title
jae-jae fetcher-mcp URL Validation security-credentials fetch_urls server-side request forgery
Summary
A vulnerability has been found in jae-jae fetcher-mcp up to 0.3.9. Impacted is the function fetch_url/fetch_urls of the file /latest/meta-data/iam/security-credentials/ of the component URL Validation. Such manipulation leads to server-side request forgery. It is possible to launch the attack remotely. The project was informed of the problem early through an issue report but has not responded yet.
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-18 13:05 UTC
CWE
  • CWE-918 - Server-Side Request Forgery
References
URL Tags
https://vuldb.com/vuln/391221 vdb-entrytechnical-description
https://vuldb.com/vuln/391221/cti signaturepermissions-required
https://vuldb.com/cve/CVE-2026-74858 third-party-advisory
https://vuldb.com/submit/876015 third-party-advisory
https://github.com/jae-jae/fetcher-mcp/issues/37 broken-linkissue-tracking
https://github.com/jae-jae/fetcher-mcp/ product
Impacted products
Vendor Product Version
jae-jae fetcher-mcp Affected: 0.3.0
Affected: 0.3.1
Affected: 0.3.2
Affected: 0.3.3
Affected: 0.3.4
Affected: 0.3.5
Affected: 0.3.6
Affected: 0.3.7
Affected: 0.3.8
Affected: 0.3.9
    cpe:2.3:a:jae-jae:fetcher-mcp:*:*:*:*:*:*:*:*
Create a notification for this product.
Show details on NVD website

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CVE-2026-74842 (GCVE-0-2026-74842)

Vulnerability from cvelistv5 – Published: 2026-08-17 10:30 – Updated: 2026-08-18 14:28
VLAI
Title
Kira-Pgr PromptShopMCP Image-Toolkit-MCP-Server server.py download_image server-side request forgery
Summary
A vulnerability was found in Kira-Pgr PromptShopMCP up to 5bc0cd17358e19a5415d11a531088170d7b81452. Affected is the function download_image of the file server.py of the component Image-Toolkit-MCP-Server. Performing a manipulation of the argument image_url results in server-side request forgery. The attack may be initiated remotely. The exploit has been made public and could be used. This product uses a rolling release model to deliver continuous updates. As a result, specific version information for affected or updated releases is not available. The project was informed of the problem early through an issue report but has not responded yet.
SSVC
Exploitation: poc Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-18 14:27 UTC
CWE
  • CWE-918 - Server-Side Request Forgery
References
URL Tags
https://vuldb.com/vuln/391204 vdb-entrytechnical-description
https://vuldb.com/vuln/391204/cti signaturepermissions-required
https://vuldb.com/cve/CVE-2026-74842 third-party-advisory
https://vuldb.com/submit/875276 third-party-advisory
https://github.com/Kira-Pgr/PromptShopMCP/issues/4 exploitissue-tracking
https://github.com/Kira-Pgr/PromptShopMCP/ product
Impacted products
Vendor Product Version
Kira-Pgr PromptShopMCP Affected: 5bc0cd17358e19a5415d11a531088170d7b81452
    cpe:2.3:a:kira-pgr:promptshopmcp:*:*:*:*:*:*:*:*
Create a notification for this product.
Show details on NVD website

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CVE-2026-74768 (GCVE-0-2026-74768)

Vulnerability from cvelistv5 – Published: 2026-09-03 08:04 – Updated: 2026-09-03 12:36
VLAI
Summary
Dell PowerProtect Data Manager, versions 20.2.0.0 and below, contain a Server-Side Request Forgery (SSRF) vulnerability in the REST API. A high privileged remote attacker could potentially exploit this vulnerability, leading to Information disclosure.
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-09-03 12:36 UTC
CWE
  • CWE-918 - Server-Side Request Forgery (SSRF)
References
Impacted products
Vendor Product Version
Dell PowerProtect Data Manager Affected: 0 , < 20.3.0.0 (semver)
Create a notification for this product.
Date Public
2026-08-24 06:30
Show details on NVD website

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CVE-2026-74247 (GCVE-0-2026-74247)

Vulnerability from cvelistv5 – Published: 2026-08-14 22:43 – Updated: 2026-08-17 15:51
VLAI
Title
Quay: ssrf via build archive_url in quay build api
Summary
A flaw was found in Red Hat Quay. A user with FEATURE_BUILD_SUPPORT enabled and repository write access can exploit a Server-Side Request Forgery (SSRF) vulnerability within the build API. This allows the user to provide a malicious URL, causing the Quay builder to make requests to internal network addresses. Such an action could lead to the disclosure of sensitive internal information.
SSVC
Exploitation: none Automatable: no Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-17 15:51 UTC
CWE
  • CWE-918 - Server-Side Request Forgery (SSRF)
References
URL Tags
https://access.redhat.com/security/cve/CVE-2026-74247 vdb-entryx_refsource_REDHAT
https://bugzilla.redhat.com/show_bug.cgi?id=2516144 issue-trackingx_refsource_REDHAT
Impacted products
Vendor Product Version
Red Hat Red Hat OpenShift Update Service     cpe:/a:redhat:openshift_update_service:5
Create a notification for this product.
Red Hat Red Hat Quay 3     cpe:/a:redhat:quay:3
Create a notification for this product.
Date Public
2026-08-14 00:00
Show details on NVD website

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CVE-2026-73845 (GCVE-0-2026-73845)

Vulnerability from cvelistv5 – Published: 2026-08-14 16:45 – Updated: 2026-08-14 18:06
VLAI
Title
CKAN MCP Server: MQA server allowlist bypass via unanchored regex (`isValidMqaServer`)
Summary
CKAN MCP Server is a tool for querying CKAN open data portals. Prior to 0.4.112, the ckan_get_mqa_quality and ckan_get_mqa_quality_details tools in src/tools/quality.ts use isValidMqaServer to validate the server_url parameter with a prefix-only regular expression for dati.gov.it, allowing suffix-host and URL-userinfo values to target an attacker-controlled host and return a spoofed response. This issue is fixed in version 0.4.112.
SSVC
Exploitation: none Automatable: yes Technical Impact: partial
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-08-14 17:41 UTC
CWE
  • CWE-20 - Improper Input Validation
  • CWE-625 - Permissive Regular Expression
  • CWE-918 - Server-Side Request Forgery (SSRF)
Impacted products
Vendor Product Version
ondata ckan-mcp-server Affected: < 0.4.112
Create a notification for this product.
Show details on NVD website

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            }
          ]
        },
        {
          "descriptions": [
            {
              "cweId": "CWE-918",
              "description": "CWE-918: Server-Side Request Forgery (SSRF)",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-08-14T16:45:06.714Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
        {
          "name": "https://github.com/ondata/ckan-mcp-server/security/advisories/GHSA-83x6-42hr-jc76",
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/ondata/ckan-mcp-server/security/advisories/GHSA-83x6-42hr-jc76"
        },
        {
          "name": "https://github.com/ondata/ckan-mcp-server/commit/8e1522f9bbfa1f3b21550f17887f60f133e24151",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/ondata/ckan-mcp-server/commit/8e1522f9bbfa1f3b21550f17887f60f133e24151"
        },
        {
          "name": "https://github.com/ondata/ckan-mcp-server/releases/tag/v0.4.112",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/ondata/ckan-mcp-server/releases/tag/v0.4.112"
        }
      ],
      "source": {
        "advisory": "GHSA-83x6-42hr-jc76",
        "discovery": "UNKNOWN"
      },
      "title": "CKAN MCP Server: MQA server allowlist bypass via unanchored regex (`isValidMqaServer`)"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2026-73845",
    "datePublished": "2026-08-14T16:45:06.714Z",
    "dateReserved": "2026-08-13T17:44:28.643Z",
    "dateUpdated": "2026-08-14T18:06:04.170Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

No mitigation information available for this CWE.

CAPEC-664: Server Side Request Forgery

An adversary exploits improper input validation by submitting maliciously crafted input to a target application running on a server, with the goal of forcing the server to make a request either to itself, to web services running in the server’s internal network, or to external third parties. If successful, the adversary’s request will be made with the server’s privilege level, bypassing its authentication controls. This ultimately allows the adversary to access sensitive data, execute commands on the server’s network, and make external requests with the stolen identity of the server. Server Side Request Forgery attacks differ from Cross Site Request Forgery attacks in that they target the server itself, whereas CSRF attacks exploit an insecure user authentication mechanism to perform unauthorized actions on the user's behalf.