{"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_01M5KF3ZXWJWB6KWKAE5AQXQ5M","modified_at":"2026-06-29T12:26:08.261502687Z","published_at":"2025-06-20T18:08:40Z","references":["https://osv.dev/vulnerability/GHSA-6qhv-4h7r-2g9m","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"],"severity":{"label":"critical","score":9.3},"sources":[{"source":"osv","source_id":"GHSA-6qhv-4h7r-2g9m","url":"https://osv.dev/vulnerability/GHSA-6qhv-4h7r-2g9m"},{"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"}