{"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_01M5NTYEEZSNNP0H8352016T75","modified_at":"2026-10-07T09:47:32.607135814Z","published_at":"2026-10-03T09:17:05.763Z","references":["https://osv.dev/vulnerability/DEBIAN-CVE-2026-71891","https://security-tracker.debian.org/tracker/CVE-2026-71891"],"severity":{"label":"unknown"},"sources":[{"source":"osv","source_id":"DEBIAN-CVE-2026-71891#Debian:14/bouncycastle","url":"https://osv.dev/vulnerability/DEBIAN-CVE-2026-71891"}],"summary":"In Bouncy Castle for Java before 1.86, BLS12_381BasicScheme.keyValidate, and so BLSPublicKeyParameters and every BasicScheme, MessageAugmentation and ProofOfPossession verify and aggregateVerify that"}