{ "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": "2026-09-17T16:50:15.672Z" }, "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" } }, "adp": [ { "references": [ { "url": "https://github.com/zereight/gitlab-mcp/security/advisories/GHSA-2h44-8472-frjj", "tags": [ "exploit" ] } ], "metrics": [ { "other": { "type": "ssvc", "content": { "timestamp": "2026-09-17T16:49:44.156114Z", "id": "CVE-2026-61559", "options": [ { "Exploitation": "poc" }, { "Automatable": "no" }, { "Technical Impact": "total" } ], "role": "CISA Coordinator", "version": "2.0.3" } } } ], "title": "CISA ADP Vulnrichment", "providerMetadata": { "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "shortName": "CISA-ADP", "dateUpdated": "2026-09-17T16:50:15.672Z" } } ] } }