{"id":"CVE-2026-59641","url":"https://www.cyber-defence.io/tools/cve/CVE-2026-59641","generatedAt":"2026-10-28T02:15:02.325Z","title":"In Bouncy Castle for Java before 1.85, S/MIME validator trusts signer-asserted signingTime for path validation.","description":"In Bouncy Castle for Java before 1.85, S/MIME validator trusts signer-asserted signingTime for path validation. This issue also affects Bouncy Castle for Java LTS before 2.73.12, and Bouncy Castle for Java FIPS (BC-FJA) before bcmail-fips and bcjmail-fips 1.0.7 (1.0.X series), 2.0.7 (2.0.X series) and 2.1.7 (2.1.X series).","published":"2026-08-03T01:16:44.000Z","lastModified":"2026-08-28T18:09:14.000Z","status":"Analyzed","sourceIdentifier":"91579145-5d7b-4cc5-b925-a0262ff19630","cvss":{"version":"4.0","score":8.7,"severity":"HIGH","vector":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/M"},"cwe":["CWE-345"],"affected":["bouncycastle/bc-java","bouncycastle/bcjmail-fips","bouncycastle/bcmail-fips","bouncycastle/bouncy castle for java lts"],"epss":{"score":0.00179,"percentile":0.07376,"date":"2026-10-26","history":[]},"kev":{"listed":false},"exploits":{"count":0,"verified":false,"firstPublished":null,"source":"Exploit-DB (https://gitlab.com/exploit-database/exploitdb)","entries":[]},"verdict":{"level":"high","text":"High impact if exploited, but EPSS currently rates exploitation as unlikely (0.18%). Schedule it in the normal patch cycle and watch for a rise in EPSS or a public exploit."},"changes":[],"references":[{"url":"https://github.com/bcgit/bc-java/commit/2f81b22d559b3a1b026388e1ca78dd547384def8","tags":["Patch"],"source":"91579145-5d7b-4cc5-b925-a0262ff19630"},{"url":"https://github.com/bcgit/bc-java/commit/fd89fe918b37fea1c71e95fae50284a325b09721","tags":["Patch"],"source":"91579145-5d7b-4cc5-b925-a0262ff19630"},{"url":"https://github.com/bcgit/bc-java/wiki/CVE%E2%80%902026%E2%80%9059641","tags":["Third Party Advisory"],"source":"91579145-5d7b-4cc5-b925-a0262ff19630"}],"sources":{"nvd":"https://nvd.nist.gov/vuln/detail/CVE-2026-59641","epss":"https://www.first.org/epss/","kev":"https://www.cisa.gov/known-exploited-vulnerabilities-catalog","exploitdb":"https://www.exploit-db.com/"},"licence":"CC BY 4.0 — link back to the CVE Explorer if you publish the results; upstream data remains subject to its own terms."}