{"id":"GHSA-p93r-85wp-75v3","summary":"Bouncy Castle Has Covert Timing Channel Vulnerability","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. This issue affects BC-JAVA: from 1.71 before 1.84.","aliases":["CVE-2026-5598"],"modified":"2026-05-05T16:09:17.707462Z","published":"2026-04-17T18:31:50Z","related":["CGA-vgfm-4x3c-36fm"],"database_specific":{"github_reviewed":true,"cwe_ids":["CWE-385"],"github_reviewed_at":"2026-04-25T23:25:24Z","nvd_published_at":"2026-04-15T10:16:49Z","severity":"HIGH"},"references":[{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-5598"},{"type":"WEB","url":"https://github.com/bcgit/bc-java/commit/8692e6b2b191fc4aafa32545c7a78bdb9bf110c5"},{"type":"WEB","url":"https://github.com/bcgit/bc-java/commit/94abbd56413dfdac651fd878bc60253871ef5e87"},{"type":"PACKAGE","url":"https://github.com/bcgit/bc-java"},{"type":"WEB","url":"https://github.com/bcgit/bc-java/wiki/CVE-2026-5598"}],"affected":[{"package":{"name":"org.bouncycastle:bcprov-jdk15to18","ecosystem":"Maven","purl":"pkg:maven/org.bouncycastle/bcprov-jdk15to18"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"1.71"},{"fixed":"1.84"}]}],"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":{"name":"org.bouncycastle:bcprov-jdk14","ecosystem":"Maven","purl":"pkg:maven/org.bouncycastle/bcprov-jdk14"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"1.71"},{"fixed":"1.84"}]}],"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":{"name":"org.bouncycastle:bcprov-jdk18on","ecosystem":"Maven","purl":"pkg:maven/org.bouncycastle/bcprov-jdk18on"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"1.71"},{"fixed":"1.84"}]}],"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","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"}}],"schema_version":"1.7.5","severity":[{"type":"CVSS_V4","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"}]}