{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-61559", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "state": "PUBLISHED", "assignerShortName": "GitHub_M", "dateReserved": "2026-07-10T16:48:39.923Z", "datePublished": "2026-09-15T20:58:41.639Z", "dateUpdated": "2026-09-15T20:58:41.639Z"}, "containers": {"cna": {"title": "@zereight/mcp-gitlab Vulnerable to Server-Side Request Forgery", "problemTypes": [{"descriptions": [{"cweId": "CWE-918", "lang": "en", "description": "CWE-918: Server-Side Request Forgery (SSRF)", "type": "CWE"}]}], "metrics": [{"cvssV3_1": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 9.6, "baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "CHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N", "version": "3.1"}}], "references": [{"name": "https://github.com/zereight/gitlab-mcp/security/advisories/GHSA-2h44-8472-frjj", "tags": ["x_refsource_CONFIRM"], "url": "https://github.com/zereight/gitlab-mcp/security/advisories/GHSA-2h44-8472-frjj"}, {"name": "https://github.com/zereight/gitlab-mcp/pull/625", "tags": ["x_refsource_MISC"], "url": "https://github.com/zereight/gitlab-mcp/pull/625"}, {"name": "https://github.com/zereight/gitlab-mcp/commit/6ffb4cc70706fd05b1ab80901676bc2998b6db6d", "tags": ["x_refsource_MISC"], "url": "https://github.com/zereight/gitlab-mcp/commit/6ffb4cc70706fd05b1ab80901676bc2998b6db6d"}, {"name": "https://github.com/zereight/gitlab-mcp/releases/tag/v2.1.27", "tags": ["x_refsource_MISC"], "url": "https://github.com/zereight/gitlab-mcp/releases/tag/v2.1.27"}], "affected": [{"vendor": "zereight", "product": "gitlab-mcp", "versions": [{"version": ">= 0.0.1, < 2.1.27", "status": "affected"}]}], "providerMetadata": {"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M", "dateUpdated": "2026-09-15T20:58:41.639Z"}, "descriptions": [{"lang": "en", "value": "`@zereight/mcp-gitlab` is a Model Context Protocol server for GitLab. Starting in version 0.0.1 and prior to version 2.1.27, when the environment variable `ENABLE_DYNAMIC_API_URL=true` is set, the server reads the `X-GitLab-API-URL` HTTP request header and uses it as the base URL for all outbound GitLab API calls made within that request. The server validates that the value is a well-formed URL (`new URL(dynamicApiUrl)`) but applies no allowlist or hostname restriction. The server then attaches the victim's `Private-Token` to every outbound fetch that uses the redirected URL. Any caller who can reach the HTTP transport can set `X-GitLab-API-URL` to an attacker-controlled host. The next GitLab API call the server makes delivers the victim's token to that host. Version 2.1.27 contains a patch."}], "source": {"advisory": "GHSA-2h44-8472-frjj", "discovery": "UNKNOWN"}}}}

{}

{"affected": [{"affectedData": [{"product": "gitlab-mcp", "vendor": "zereight", "versions": [{"status": "affected", "version": ">= 0.0.1, < 2.1.27"}]}], "source": "security-advisories@github.com"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "`@zereight/mcp-gitlab` is a Model Context Protocol server for GitLab. Starting in version 0.0.1 and prior to version 2.1.27, when the environment variable `ENABLE_DYNAMIC_API_URL=true` is set, the server reads the `X-GitLab-API-URL` HTTP request header and uses it as the base URL for all outbound GitLab API calls made within that request. The server validates that the value is a well-formed URL (`new URL(dynamicApiUrl)`) but applies no allowlist or hostname restriction. The server then attaches the victim's `Private-Token` to every outbound fetch that uses the redirected URL. Any caller who can reach the HTTP transport can set `X-GitLab-API-URL` to an attacker-controlled host. The next GitLab API call the server makes delivers the victim's token to that host. Version 2.1.27 contains a patch."}], "id": "CVE-2026-61559", "lastModified": "2026-09-15T21:16:41.390", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "NETWORK", "availabilityImpact": "NONE", "baseScore": 9.6, "baseSeverity": "CRITICAL", "confidentialityImpact": "HIGH", "integrityImpact": "HIGH", "privilegesRequired": "LOW", "scope": "CHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N", "version": "3.1"}, "exploitabilityScore": 3.1, "impactScore": 5.8, "source": "security-advisories@github.com", "type": "Secondary"}]}, "published": "2026-09-15T21:16:41.390", "references": [{"source": "security-advisories@github.com", "url": "https://github.com/zereight/gitlab-mcp/commit/6ffb4cc70706fd05b1ab80901676bc2998b6db6d"}, {"source": "security-advisories@github.com", "url": "https://github.com/zereight/gitlab-mcp/pull/625"}, {"source": "security-advisories@github.com", "url": "https://github.com/zereight/gitlab-mcp/releases/tag/v2.1.27"}, {"source": "security-advisories@github.com", "url": "https://github.com/zereight/gitlab-mcp/security/advisories/GHSA-2h44-8472-frjj"}], "sourceIdentifier": "security-advisories@github.com", "vulnStatus": "Received", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-918"}], "source": "security-advisories@github.com", "type": "Primary"}]}

{}

{}