{"id":"CVE-2026-54549","state":"PUBLISHED","title":"Meta Ads MCP: Server-Side Request Forgery (SSRF) in `upload_ad_image` via Unrestricted `image_url` Fetch","description":"Meta Ads MCP is a Model Context Protocol (MCP) server that lets AI assistants run Meta Ads. Prior to version 1.0.115, the upload_ad_image tool in meta_ads_mcp/core/ads.py passes an attacker-controlled image_url to try_multiple_download_methods() in meta_ads_mcp/core/utils.py, where httpx.AsyncClient uses follow_redirects=True and performs HTTP requests without validating the scheme, host, or resolved IP address. In a streamable-http deployment, a network caller can use any non-empty authorization value because Meta credential validation occurs after the image download, then direct the server to loopback services, private-network addresses, cloud metadata endpoints, or redirect-chained internal targets. The resulting server-side request forgery can expose internal data, invoke state-changing internal services, or disrupt reachable services. This issue is fixed in version 1.0.115.","publishedAt":"2026-09-15T17:18:26.004Z","updatedAt":"2026-09-16T14:44:41.503Z","severity":{"score":8.3,"label":"High","version":"3.1","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:L","source":"GitHub_M"},"assigner":"GitHub_M","products":["pipeboard-co meta-ads-mcp"],"affected":[{"vendor":"pipeboard-co","product":"meta-ads-mcp","versions":[{"version":"< 1.0.115","status":"affected"}]}],"references":["https://github.com/pipeboard-co/meta-ads-mcp/security/advisories/GHSA-45gf-fjxp-cjpq","https://github.com/pipeboard-co/meta-ads-mcp/pull/138","https://github.com/pipeboard-co/meta-ads-mcp/commit/7d9926336bbdac6285a988d043c4ccfe126c94c5","https://github.com/pipeboard-co/meta-ads-mcp/releases/tag/1.0.115"],"weaknesses":["CWE-918"],"ingestedAt":"2026-10-29T20:12:24.861Z","source":{"repository":"CVEProject/cvelistV5","path":"cves/2026/54xxx/CVE-2026-54549.json","commit":"556c9d3a8cd17e218bb8e452ba7cd619a384ff47"},"raw":{"dataType":"CVE_RECORD","dataVersion":"5.2","cveMetadata":{"cveId":"CVE-2026-54549","state":"PUBLISHED","datePublished":"2026-09-15T17:18:26.004Z","dateUpdated":"2026-09-16T14:44:41.503Z","assignerShortName":"GitHub_M","assignerOrgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateReserved":"2026-06-15T19:04:14.456Z"},"containers":{"cna":{"title":"Meta Ads MCP: Server-Side Request Forgery (SSRF) in `upload_ad_image` via Unrestricted `image_url` Fetch","descriptions":[{"lang":"en","value":"Meta Ads MCP is a Model Context Protocol (MCP) server that lets AI assistants run Meta Ads. Prior to version 1.0.115, the upload_ad_image tool in meta_ads_mcp/core/ads.py passes an attacker-controlled image_url to try_multiple_download_methods() in meta_ads_mcp/core/utils.py, where httpx.AsyncClient uses follow_redirects=True and performs HTTP requests without validating the scheme, host, or resolved IP address. In a streamable-http deployment, a network caller can use any non-empty authorization value because Meta credential validation occurs after the image download, then direct the server to loopback services, private-network addresses, cloud metadata endpoints, or redirect-chained internal targets. The resulting server-side request forgery can expose internal data, invoke state-changing internal services, or disrupt reachable services. This issue is fixed in version 1.0.115."}],"affected":[{"vendor":"pipeboard-co","product":"meta-ads-mcp","versions":[{"version":"< 1.0.115","status":"affected"}]}],"references":[{"url":"https://github.com/pipeboard-co/meta-ads-mcp/security/advisories/GHSA-45gf-fjxp-cjpq","name":"https://github.com/pipeboard-co/meta-ads-mcp/security/advisories/GHSA-45gf-fjxp-cjpq","tags":["x_refsource_CONFIRM"]},{"url":"https://github.com/pipeboard-co/meta-ads-mcp/pull/138","name":"https://github.com/pipeboard-co/meta-ads-mcp/pull/138","tags":["x_refsource_MISC"]},{"url":"https://github.com/pipeboard-co/meta-ads-mcp/commit/7d9926336bbdac6285a988d043c4ccfe126c94c5","name":"https://github.com/pipeboard-co/meta-ads-mcp/commit/7d9926336bbdac6285a988d043c4ccfe126c94c5","tags":["x_refsource_MISC"]},{"url":"https://github.com/pipeboard-co/meta-ads-mcp/releases/tag/1.0.115","name":"https://github.com/pipeboard-co/meta-ads-mcp/releases/tag/1.0.115","tags":["x_refsource_MISC"]}],"metrics":[{"cvssV3_1":{"attackComplexity":"LOW","attackVector":"NETWORK","availabilityImpact":"LOW","baseScore":8.3,"baseSeverity":"HIGH","confidentialityImpact":"LOW","integrityImpact":"LOW","privilegesRequired":"NONE","scope":"CHANGED","userInteraction":"NONE","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:L/A:L","version":"3.1"}}],"problemTypes":[{"descriptions":[{"cweId":"CWE-918","lang":"en","description":"CWE-918: Server-Side Request Forgery (SSRF)","type":"CWE"}]}],"providerMetadata":{"shortName":"GitHub_M","orgId":"a0819718-46f1-4df5-94e2-005712e83aaa","dateUpdated":"2026-09-15T17:18:26.004Z"},"source":{"advisory":"GHSA-45gf-fjxp-cjpq","discovery":"UNKNOWN"}},"adp":[{"title":"CISA ADP Vulnrichment","references":[{"url":"https://github.com/pipeboard-co/meta-ads-mcp/security/advisories/GHSA-45gf-fjxp-cjpq","tags":["exploit"]}],"metrics":[{"other":{"type":"ssvc","content":{"timestamp":"2026-09-16T14:44:33.498820Z","id":"CVE-2026-54549","options":[{"Exploitation":"poc"},{"Automatable":"yes"},{"Technical Impact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}}],"providerMetadata":{"shortName":"CISA-ADP","orgId":"134c704f-9b21-4f2e-91b3-4a467353bcc0","dateUpdated":"2026-09-16T14:44:41.503Z"}}]}}}