{"id":"CVE-2026-89086","aliases":[],"url":"https://o3.security/vulnerability/CVE-2026-89086","summary":"In the jose package before 0.11.0 for OCaml, library calls to validate an RSA signature only confirm that PKCS #1 decoding succeeds, and proceed to declare the signature valid without…","details":"In the jose package before 0.11.0 for OCaml, library calls to validate an RSA signature only confirm that PKCS #1 decoding succeeds, and proceed to declare the signature valid without the required steps that involve the public key.","published":"2026-09-10T20:17:32.113","modified":"2026-09-10T20:17:32.113","cvss":{"score":9.1,"severity":"CRITICAL","vector":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N"},"epss":null,"cisaKev":null,"exploitsKnown":null,"affectedPackages":[],"fix":{"url":"https://github.com/ulrikstrid/ocaml-jose/commit/cf17d991ec6a0d1997956b6c7799890f9c28879e","label":"ulrikstrid/ocaml-jose@cf17d99"},"references":[{"type":"WEB","url":"https://github.com/ulrikstrid/ocaml-jose/commit/cf17d991ec6a0d1997956b6c7799890f9c28879e"},{"type":"WEB","url":"https://osv.dev/vulnerability/OSEC-2026-19"}],"provenance":{"sources":["OSV.dev","NVD","FIRST.org (EPSS)"],"lastVerified":"2026-09-10T20:17:32.113"}}