{"id":"GHSA-5jx8-q4cp-rhh6","summary":"jsrsasign: Incomplete Comparison Allows DSA Private Key Recovery via Biased Nonce Generation","details":"Versions of the package jsrsasign from 7.0.0 and before 11.1.1 are vulnerable to Incomplete Comparison with Missing Factors via the getRandomBigIntegerZeroToMax and getRandomBigIntegerMinToMax functions in src/crypto-1.1.js; an attacker can recover the private key by exploiting the incorrect compareTo checks that accept out-of-range candidates and thus bias DSA nonces during signature generation.","aliases":["CVE-2026-4599"],"modified":"2026-07-21T14:00:32.742161802Z","published":"2026-03-23T06:30:29Z","database_specific":{"github_reviewed":true,"github_reviewed_at":"2026-03-30T19:29:39Z","nvd_published_at":"2026-03-23T06:16:21Z","cwe_ids":["CWE-1023","CWE-338"],"severity":"CRITICAL"},"references":[{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-4599"},{"type":"WEB","url":"https://github.com/kjur/jsrsasign/pull/647"},{"type":"WEB","url":"https://github.com/kjur/jsrsasign/commit/ee4b013478366cb16cea9a4bdfb218b6077f83b1"},{"type":"WEB","url":"https://security.snyk.io/vuln/SNYK-JS-JSRSASIGN-15370939"},{"type":"WEB","url":"https://security.snyk.io/vuln/SNYK-JAVA-ORGWEBJARSNPM-15812264"},{"type":"WEB","url":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-4599.json"},{"type":"PACKAGE","url":"https://github.com/kjur/jsrsasign"},{"type":"WEB","url":"https://gist.github.com/Kr0emer/081681818b51605c91945126d74b4f20"},{"type":"WEB","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2450207"},{"type":"WEB","url":"https://access.redhat.com/security/cve/CVE-2026-4599"},{"type":"WEB","url":"https://access.redhat.com/errata/RHSA-2026:6926"},{"type":"WEB","url":"https://access.redhat.com/errata/RHSA-2026:6912"},{"type":"WEB","url":"https://access.redhat.com/errata/RHSA-2026:6720"},{"type":"WEB","url":"https://access.redhat.com/errata/RHSA-2026:6568"},{"type":"WEB","url":"https://access.redhat.com/errata/RHSA-2026:19410"},{"type":"WEB","url":"https://access.redhat.com/errata/RHSA-2026:19409"},{"type":"WEB","url":"https://access.redhat.com/errata/RHSA-2026:19375"}],"affected":[{"package":{"name":"jsrsasign","ecosystem":"npm","purl":"pkg:npm/jsrsasign"},"ranges":[{"type":"SEMVER","events":[{"introduced":"7.0.0"},{"fixed":"11.1.1"}]}],"database_specific":{"source":"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/03/GHSA-5jx8-q4cp-rhh6/GHSA-5jx8-q4cp-rhh6.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N"},{"type":"CVSS_V4","score":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N"}]}