{"id":"CVE-2026-4598","aliases":["GHSA-8g7p-jf3g-gxcp"],"url":"https://o3.security/vulnerability/CVE-2026-4598","summary":"jsrsasign is vulnerable to DoS through Infinite Loop when processing zero or negative inputs","details":"Versions of the package jsrsasign before 11.1.1 are vulnerable to Infinite loop via the bnModInverse function in ext/jsbn2.js when the BigInteger.modInverse implementation receives zero or negative inputs, allowing an attacker to hang the process permanently by supplying such crafted values (e.g., modInverse(0, m) or modInverse(-1, m)).","published":"2026-03-23T05:00:11.571Z","modified":"2026-08-04T03:32:22.610457442Z","cvss":null,"epss":null,"cisaKev":null,"exploitsKnown":0,"affectedPackages":[{"ecosystem":"npm","name":"jsrsasign","fixedVersion":"11.1.1"}],"fix":{"url":"https://github.com/kjur/jsrsasign/commit/ca5b027240287a1e71fe63019fc4400332594323","label":"kjur/jsrsasign@ca5b027"},"references":[{"type":"WEB","url":"https://gist.github.com/Kr0emer/a1bf5cd4547cc630d2dcc5e761de8264"},{"type":"WEB","url":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-4598.json"},{"type":"WEB","url":"https://security.snyk.io/vuln/SNYK-JAVA-ORGWEBJARSNPM-15812263"},{"type":"WEB","url":"https://security.snyk.io/vuln/SNYK-JS-JSRSASIGN-15370938"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2026:19375"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2026:19409"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2026:19410"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2026:22840"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2026:23361"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2026:6568"},{"type":"ADVISORY","url":"https://access.redhat.com/errata/RHSA-2026:6720"},{"type":"ADVISORY","url":"https://access.redhat.com/security/cve/CVE-2026-4598"},{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/4xxx/CVE-2026-4598.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-4598"},{"type":"REPORT","url":"https://bugzilla.redhat.com/show_bug.cgi?id=2450210"},{"type":"FIX","url":"https://github.com/kjur/jsrsasign/commit/ca5b027240287a1e71fe63019fc4400332594323"},{"type":"FIX","url":"https://github.com/kjur/jsrsasign/pull/648"}],"provenance":{"sources":["OSV.dev","FIRST.org (EPSS)"],"lastVerified":"2026-08-04T03:32:22.610457442Z"}}