{"action":"Upgrade rfc3161-client to 1.0.3 or later.","affected":[{"fixed":"1.0.3","introduced":"0"}],"component":"rfc3161-client","cve_ids":["CVE-2025-52556"],"ecosystem":"PyPI","epss":0.00169,"exploited":false,"fixed_versions":["1.0.3"],"ghsa_id":"GHSA-6qhv-4h7r-2g9m","id":"tcs_01M5KHBXGAT1JD13S4G18TVCE2","modified_at":"2026-07-13T16:15:34.044532111Z","published_at":"2026-06-29T11:50:38.536479Z","references":["https://osv.dev/vulnerability/PYSEC-2026-525","https://github.com/trailofbits/rfc3161-client/security/advisories/GHSA-6qhv-4h7r-2g9m","https://nvd.nist.gov/vuln/detail/CVE-2025-52556","https://github.com/trailofbits/rfc3161-client/commit/724a184f953e3f171f85cb223871172b41b0d0dc","https://github.com/trailofbits/rfc3161-client","https://pypi.org/project/rfc3161-client","https://github.com/advisories/GHSA-6qhv-4h7r-2g9m"],"severity":{"label":"critical","score":9.3},"sources":[{"source":"osv","source_id":"PYSEC-2026-525","url":"https://osv.dev/vulnerability/PYSEC-2026-525"},{"source":"nvd","source_id":"CVE-2025-52556","url":"https://nvd.nist.gov/vuln/detail/CVE-2025-52556"}],"summary":"rfc3161-client has insufficient verification for timestamp response signatures"}