{"action":"Upgrade org.bouncycastle:bcprov-jdk18on to 1.80.2 (1.80.x) or 1.84 (1.84.x) or later.","affected":[{"fixed":"1.84","introduced":"1.82"},{"fixed":"1.84","introduced":"1.81"},{"fixed":"1.80.2","introduced":"1.71"}],"component":"org.bouncycastle:bcprov-jdk18on","cve_ids":["CVE-2026-5598"],"ecosystem":"Maven","epss":0.00899,"exploited":false,"fixed_versions":["1.84","1.80.2"],"ghsa_id":"GHSA-p93r-85wp-75v3","id":"tcs_01M5N972J0A4EM5QHQW4AABM6H","modified_at":"2026-11-04T03:30:49.735916365Z","published_at":"2026-04-17T18:31:50Z","references":["https://osv.dev/vulnerability/GHSA-p93r-85wp-75v3","https://nvd.nist.gov/vuln/detail/CVE-2026-5598","https://github.com/bcgit/bc-java/commit/8692e6b2b191fc4aafa32545c7a78bdb9bf110c5","https://github.com/bcgit/bc-java/commit/94abbd56413dfdac651fd878bc60253871ef5e87","https://github.com/bcgit/bc-java","https://github.com/bcgit/bc-java/wiki/CVE%E2%80%902026%E2%80%905598","https://github.com/bcgit/bc-java/wiki/CVE-2026-5598","https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-5598.json","https://bugzilla.redhat.com/show_bug.cgi?id=2458635","https://access.redhat.com/security/cve/CVE-2026-5598","https://access.redhat.com/errata/RHSA-2026:53806","https://access.redhat.com/errata/RHSA-2026:53646","https://access.redhat.com/errata/RHSA-2026:53645","https://access.redhat.com/errata/RHSA-2026:53644","https://access.redhat.com/errata/RHSA-2026:18059","https://access.redhat.com/errata/RHSA-2026:18055","https://access.redhat.com/errata/RHSA-2026:18054","https://access.redhat.com/errata/RHSA-2026:12269","https://access.redhat.com/errata/RHSA-2026:12267"],"severity":{"label":"high","score":7.5},"sources":[{"source":"osv","source_id":"GHSA-p93r-85wp-75v3#Maven/org.bouncycastle:bcprov-jdk18on","url":"https://osv.dev/vulnerability/GHSA-p93r-85wp-75v3"},{"source":"nvd","source_id":"CVE-2026-5598","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-5598"}],"summary":"Bouncy Castle Has Covert Timing Channel Vulnerability"}