{"cve":"CVE-2026-54547","nvd":{"published":"2026-09-15T18:17:22.927","modified":"2026-09-30T17:51:56.193","status":"Deferred","description":"Meta Ads MCP is a Model Context Protocol (MCP) server that lets AI assistants run Meta Ads. Prior to version 1.0.115, AuthInjectionMiddleware in meta_ads_mcp/core/http_auth_integration.py rejects HTTP MCP requests only when both auth_token and pipeboard_token are absent, while extract_token_from_headers() does not recognize X-Pipeboard-Token as a primary credential. A network caller using the streamable-http transport can therefore send any X-Pipeboard-Token value, pass the guard without establishing authentication context, and cause get_auth_token() to fall back to the server operator's META_ACCESS_TOKEN. Subsequent MCP tools execute with the operator's Meta credentials and can read or modify the operator's Meta Ads data. Deployments using the default stdio transport or without META_ACCESS_TOKEN are not affected. This issue is fixed in version 1.0.115.","cvss_v4":null,"cvss_v3":{"version":"3.1","vector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N","score":7.4},"cwes":["CWE-287"],"references":["https://github.com/pipeboard-co/meta-ads-mcp/commit/95e852793b7ff8604a8132e85d5facd08c91a36e","https://github.com/pipeboard-co/meta-ads-mcp/pull/137","https://github.com/pipeboard-co/meta-ads-mcp/releases/tag/1.0.115","https://github.com/pipeboard-co/meta-ads-mcp/security/advisories/GHSA-2v2f-mvfg-ph56","https://github.com/pipeboard-co/meta-ads-mcp/security/advisories/GHSA-2v2f-mvfg-ph56"],"products":[],"source":"nvd","synced_at":"2026-10-19T22:54:41.405518556+00:00"},"epss":{"cve":"CVE-2026-54547","score":0.00518,"percentile":0.43791,"date":"2026-10-25"},"kev":null,"osv":[{"id":"GHSA-2v2f-mvfg-ph56","url":"https://osv.dev/vulnerability/GHSA-2v2f-mvfg-ph56","summary":"meta-ads-mcp: X-Pipeboard-Token Header Auth Bypass Reuses Operator Meta Token","modified":"2026-07-23T15:11:27.804572936Z","packages":[{"ecosystem":"PyPI","name":"meta-ads-mcp","purl":"pkg:pypi/meta-ads-mcp","ranges":["<1.0.115"],"fixed":["1.0.115"]}]},{"id":"PYSEC-2026-3484","url":"https://osv.dev/vulnerability/PYSEC-2026-3484","summary":"meta-ads-mcp: X-Pipeboard-Token Header Auth Bypass Reuses Operator Meta Token","modified":"2026-07-23T15:00:15.254592954Z","packages":[{"ecosystem":"PyPI","name":"meta-ads-mcp","purl":"pkg:pypi/meta-ads-mcp","ranges":["<1.0.115"],"fixed":["1.0.115"]}]}],"attribution":["This product uses the NVD API but is not endorsed or certified by the NVD.","EPSS scores: FIRST Exploit Prediction Scoring System, https://www.first.org/epss","Known exploited vulnerabilities: CISA Known Exploited Vulnerabilities Catalog, https://www.cisa.gov/known-exploited-vulnerabilities-catalog","Package advisories: OSV (https://osv.dev), from the GitHub Advisory Database, PyPA, Go, RustSec and other ecosystem databases, under CC-BY 4.0 or CC0","CVE records: the CVE Program's CVE List (https://www.cve.org), under its terms of use (https://www.cve.org/Legal/TermsOfUse). CVE is a registered trademark of The MITRE Corporation; this product is not affiliated with the CVE Program."]}