{"id":"CVE-2026-59640","title":"In Bouncy Castle for Java before 1.85, OpenPGP CFB quick-check oracle active on symmetric/session-key paths","summary":"In Bouncy Castle for Java before 1.85, OpenPGP CFB quick-check oracle active on symmetric/session-key paths. This issue also affects Bouncy Castle for Java LTS before 2.73.12, and Bouncy Castle for Java FIPS (BC-FJA) before bcpg-fips 1.0…","severity":"none","cwe":["CWE-203"],"published":"2026-08-03","updated":"2026-08-03","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-59640","references":[{"url":"https://github.com/bcgit/bc-java/commit/6b94b1c146cec1f565d9a85847fae511af77503e","label":"91579145-5d7b-4cc5-b925-a0262ff19630"},{"url":"https://github.com/bcgit/bc-java/wiki/CVE-2026-59640","label":"91579145-5d7b-4cc5-b925-a0262ff19630"}],"tags":["nvd"],"ingestedAt":"2026-08-03T01:21:07.756Z","epss":0.00217,"epssPercentile":0.12354,"slug":"CVE-2026-59640","body":"## Overview\n\nIn Bouncy Castle for Java before 1.85, OpenPGP CFB quick-check oracle active on symmetric/session-key paths. This issue also affects Bouncy Castle for Java LTS before 2.73.12, and Bouncy Castle for Java FIPS (BC-FJA) before bcpg-fips 1.0.13 (1.0.X series), 2.0.13 (2.0.X series) and 2.1.13 (2.1.X series).\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":3,"depthScoreParts":{"impact":2.8,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}