{"affected":[{"database_specific":{"source":"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/04/GHSA-p93r-85wp-75v3/GHSA-p93r-85wp-75v3.json"},"package":{"ecosystem":"Maven","name":"org.bouncycastle:bcprov-jdk15to18","purl":"pkg:maven/org.bouncycastle/bcprov-jdk15to18"},"ranges":[{"events":[{"introduced":"1.71"},{"fixed":"1.80.2"}],"type":"ECOSYSTEM"}],"versions":["1.71","1.72","1.73","1.74","1.75","1.76","1.77","1.78","1.78.1","1.79","1.80"]},{"database_specific":{"source":"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/04/GHSA-p93r-85wp-75v3/GHSA-p93r-85wp-75v3.json"},"package":{"ecosystem":"Maven","name":"org.bouncycastle:bcprov-jdk14","purl":"pkg:maven/org.bouncycastle/bcprov-jdk14"},"ranges":[{"events":[{"introduced":"1.71"},{"fixed":"1.84"}],"type":"ECOSYSTEM"}],"versions":["1.71","1.72","1.73","1.74","1.75","1.76","1.77","1.78","1.78.1","1.79","1.80","1.81","1.82","1.83"]},{"database_specific":{"source":"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/04/GHSA-p93r-85wp-75v3/GHSA-p93r-85wp-75v3.json"},"package":{"ecosystem":"Maven","name":"org.bouncycastle:bcprov-jdk18on","purl":"pkg:maven/org.bouncycastle/bcprov-jdk18on"},"ranges":[{"events":[{"introduced":"1.82"},{"fixed":"1.84"}],"type":"ECOSYSTEM"}],"versions":["1.82","1.83"]},{"database_specific":{"last_known_affected_version_range":"< 1.81.1","source":"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/04/GHSA-p93r-85wp-75v3/GHSA-p93r-85wp-75v3.json"},"package":{"ecosystem":"Maven","name":"org.bouncycastle:bcprov-jdk18on","purl":"pkg:maven/org.bouncycastle/bcprov-jdk18on"},"ranges":[{"events":[{"introduced":"1.81"},{"fixed":"1.84"}],"type":"ECOSYSTEM"}],"versions":["1.81","1.81.1","1.82","1.83"]},{"database_specific":{"source":"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/04/GHSA-p93r-85wp-75v3/GHSA-p93r-85wp-75v3.json"},"package":{"ecosystem":"Maven","name":"org.bouncycastle:bcprov-jdk18on","purl":"pkg:maven/org.bouncycastle/bcprov-jdk18on"},"ranges":[{"events":[{"introduced":"1.71"},{"fixed":"1.80.2"}],"type":"ECOSYSTEM"}],"versions":["1.71","1.71.1","1.72","1.73","1.74","1.75","1.76","1.77","1.78","1.78.1","1.79","1.80"]}],"aliases":["CVE-2026-5598"],"database_specific":{"cwe_ids":["CWE-385"],"github_reviewed":true,"github_reviewed_at":"2026-04-25T23:25:24Z","nvd_published_at":"2026-04-15T10:16:49Z","severity":"HIGH"},"details":"Covert timing channel vulnerability in Legion of the Bouncy Castle Inc. BC-JAVA core on all (core modules). This vulnerability is associated with program files FrodoEngine.Java.\n\nThis issue only affects users of the FrodoKEM algorithm involved in the decryption of encapsulations.\n\nThis issue affects BC-JAVA: from 1.71 to 1.80.1, 1.81, 1.82 to 1.83.\n\nFixed versions: 1.80.2, 1.81.1, 1.84","id":"GHSA-p93r-85wp-75v3","modified":"2026-11-04T03:30:49.735916365Z","published":"2026-04-17T18:31:50Z","references":[{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-5598"},{"type":"WEB","url":"https://github.com/bcgit/bc-java/commit/94abbd56413dfdac651fd878bc60253871ef5e87"},{"type":"WEB","url":"https://github.com/bcgit/bc-java/commit/8692e6b2b191fc4aafa32545c7a78bdb9bf110c5"},{"type":"WEB","url":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-5598.json"},{"type":"WEB","url":"https://github.com/bcgit/bc-java/wiki/CVE-2026-5598"},{"type":"WEB","url":"https://github.com/bcgit/bc-java/wiki/CVE%E2%80%902026%E2%80%905598"},{"type":"PACKAGE","url":"https://github.com/bcgit/bc-java"},{"type":"WEB","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2458635"},{"type":"WEB","url":"https://access.redhat.com/security/cve/CVE-2026-5598"},{"type":"WEB","url":"https://access.redhat.com/errata/RHSA-2026:53806"},{"type":"WEB","url":"https://access.redhat.com/errata/RHSA-2026:53646"},{"type":"WEB","url":"https://access.redhat.com/errata/RHSA-2026:53645"},{"type":"WEB","url":"https://access.redhat.com/errata/RHSA-2026:53644"},{"type":"WEB","url":"https://access.redhat.com/errata/RHSA-2026:18059"},{"type":"WEB","url":"https://access.redhat.com/errata/RHSA-2026:18055"},{"type":"WEB","url":"https://access.redhat.com/errata/RHSA-2026:18054"},{"type":"WEB","url":"https://access.redhat.com/errata/RHSA-2026:12269"},{"type":"WEB","url":"https://access.redhat.com/errata/RHSA-2026:12267"}],"schema_version":"1.9.2","severity":[{"score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N","type":"CVSS_V3"},{"score":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:H/SI:H/SA:N/E:U/S:P/AU:Y/U:Red","type":"CVSS_V4"}],"summary":"Bouncy Castle Has Covert Timing Channel Vulnerability"}