{"action":"Upgrade bouncycastle to 1.86-1 or later.","affected":[{"fixed":"1.86-1","introduced":"0"}],"component":"bouncycastle","cve_ids":[],"ecosystem":"Debian","ecosystem_qualifier":"Debian:14","exploited":false,"fixed_versions":["1.86-1"],"id":"tcs_01M5NT5MNRDAEHN7C0C5Y8AGT8","modified_at":"2026-10-24T09:47:25.571137862Z","published_at":"2026-08-03T01:16:44.467Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2026-59644","https://security-tracker.debian.org/tracker/CVE-2026-59644"],"severity":{"label":"high","score":7.5},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2026-59644#Debian:14/bouncycastle","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2026-59644"}],"summary":"In Bouncy Castle for Java before 1.85, MLS hash-ratchet honours arbitrary 32-bit generation counter from sender."}