{"id":"CVE-2026-77822","aliases":["EUVD-2026-71256","GHSA-2pmv-2qcc-jcgq"],"status":"published","title":"IBM ContextForge MCP Gateway is affected by server-side request forgery (DNS rebinding) via the A2A agent invocation endpoint","description":"IBM ContextForge MCP Gateway could allow a remote authenticated attacker to obtain sensitive information due to server-side request forgery via DNS rebinding.","severity":{"version":"3.1","score":8.2,"vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:N","level":"high","assessor":"cna","from":"cve"},"epss":{"day":"2026-11-10","score":0.0037,"percentile":0.31228,"model":"v2026.06.15"},"facts":{"in_kev":false,"known_exploited":false,"public_exploit":false,"fix_available":false},"cwes":["CWE-918"],"published":"2026-09-04T15:15:35Z","modified":"2026-11-06T10:46:32Z","products":[{"vendor":"ibm","product":"contextforge"},{"vendor":"ibm","product":"contextforge mcp gateway"}],"references":[{"url":"https://www.ibm.com/support/pages/node/7286055","tags":["vendor-advisory","patch","Patch","Vendor Advisory","fix"]},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-77822"},{"url":"https://github.com/advisories/GHSA-2pmv-2qcc-jcgq"}],"sources":{"cve":[{"id":"CVE-2026-77822","title":"IBM ContextForge MCP Gateway is affected by server-side request forgery (DNS rebinding) via the A2A agent invocation endpoint","description":"IBM ContextForge MCP Gateway could allow a remote authenticated attacker to obtain sensitive information due to server-side request forgery via DNS rebinding.","status":"published","published":"2026-09-04T15:15:35.403Z","modified":"2026-09-04T18:24:58.315Z","cvss":[{"version":"3.1","score":8.2,"vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:N","level":"high","assessor":"cna"}],"cwes":["CWE-918"],"updated_at":"2026-11-02T14:20:15.712761Z"}],"euvd":[{"id":"EUVD-2026-71256","description":"IBM ContextForge MCP Gateway could allow a remote authenticated attacker to obtain sensitive information due to server-side request forgery via DNS rebinding.","status":"published","published":"2026-09-04T15:15:35Z","modified":"2026-09-04T18:24:58Z","cvss":[{"version":"3.1","score":8.2,"vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:N","level":"high"}],"updated_at":"2026-11-02T18:01:11.774269Z"}],"ghsa":[{"id":"GHSA-2pmv-2qcc-jcgq","title":"IBM ContextForge MCP Gateway could allow a remote authenticated attacker to obtain sensitive...","description":"IBM ContextForge MCP Gateway could allow a remote authenticated attacker to obtain sensitive information due to server-side request forgery via DNS rebinding.","status":"published","published":"2026-09-04T18:31:24Z","modified":"2026-09-04T18:31:31Z","cvss":[{"version":"3.1","score":8.2,"vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:N","level":"high"}],"cwes":["CWE-918"],"updated_at":"2026-11-02T15:11:23.167848Z"}],"nvd":[{"id":"CVE-2026-77822","description":"IBM ContextForge MCP Gateway could allow a remote authenticated attacker to obtain sensitive information due to server-side request forgery via DNS rebinding.","status":"published","published":"2026-09-04T16:17:59.55Z","modified":"2026-09-15T15:16:27.183Z","cvss":[{"version":"3.1","score":8.2,"vector":"CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:C/C:H/I:H/A:N","level":"high","assessor":"secondary"},{"version":"3.1","score":9.6,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N","level":"critical","assessor":"primary"}],"cwes":["CWE-918"],"updated_at":"2026-11-02T14:12:43.737972Z"}],"osv":[{"id":"CVE-2026-77822","description":"IBM ContextForge MCP Gateway could allow a remote authenticated attacker to obtain sensitive information due to server-side request forgery via DNS rebinding.","status":"published","published":"2026-09-04T16:17:59.55Z","modified":"2026-11-06T10:46:32.682396863Z","cvss":[{"version":"3.1","score":9.6,"vector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N","level":"critical"}],"updated_at":"2026-11-06T11:08:50.716036Z"}]}}