{"id":"CVE-2026-5598","aliases":["GHSA-p93r-85wp-75v3"],"url":"https://o3.security/vulnerability/CVE-2026-5598","summary":"Non-constant time comparisons risk private key leakage in FrodoKEM.","details":"Covert timing channel vulnerability in Legion of the Bouncy Castle Inc. BC-JAVA core on all (core modules).\n\n This vulnerability is associated with program files FrodoEngine.Java.\n\n\n\nThis issue affects BC-JAVA: from 1.71 before 1.80.2, from 1.81 before 1.81.1, from 1.82 before 1.84.","published":"2026-04-15T09:05:56.277Z","modified":"2026-09-19T08:08:56.212132Z","cvss":null,"epss":{"score":0.00899,"percentile":0.57944,"asOf":"2026-09-17"},"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"Maven","name":"org.bouncycastle:bcprov-jdk15to18","fixedVersion":"1.80.2"},{"ecosystem":"Maven","name":"org.bouncycastle:bcprov-jdk14","fixedVersion":"1.81.1"},{"ecosystem":"Maven","name":"org.bouncycastle:bcprov-jdk18on","fixedVersion":"1.84"}],"fix":{"url":"https://github.com/bcgit/bc-java/commit/8692e6b2b191fc4aafa32545c7a78bdb9bf110c5","label":"bcgit/bc-java@8692e6b"},"references":[{"type":"WEB","url":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-5598.json"},{"type":"WEB","url":"https://www.bouncycastle.org/download/bouncy-castle-java/"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2026:12267"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2026:12269"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2026:18054"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2026:18055"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2026:18059"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2026:53644"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2026:53645"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2026:53646"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2026:53806"},{"type":"ADVISORY","url":"https://access.redhat.com/security/cve/CVE-2026-5598"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/5xxx/CVE-2026-5598.json"},{"type":"ADVISORY","url":"https://github.com/bcgit/bc-java/wiki/CVE%E2%80%902026%E2%80%905598"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-5598"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2458635"},{"type":"FIX","url":"https://github.com/bcgit/bc-java/commit/8692e6b2b191fc4aafa32545c7a78bdb9bf110c5"},{"type":"FIX","url":"https://github.com/bcgit/bc-java/commit/94abbd56413dfdac651fd878bc60253871ef5e87"},{"type":"PACKAGE","url":"https://github.com/bcgit/bc-java"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-09-19T08:08:56.212132Z"}}