{"action":"Upgrade jsrsasign to 11.1.1 or later.","affected":[{"fixed":"11.1.1","introduced":"0"}],"component":"jsrsasign","cve_ids":["CVE-2026-4602"],"ecosystem":"npm","epss":0.00499,"exploited":false,"fixed_versions":["11.1.1"],"ghsa_id":"GHSA-8qwj-4jxw-m8jw","id":"tcs_01M5KFDTDVWJN36DA6G4N9WRVA","modified_at":"2026-07-21T14:00:32.751983961Z","published_at":"2026-03-23T06:30:29Z","references":["https://osv.dev/vulnerability/GHSA-8qwj-4jxw-m8jw","https://nvd.nist.gov/vuln/detail/CVE-2026-4602","https://github.com/kjur/jsrsasign/pull/650","https://github.com/kjur/jsrsasign/commit/5ea1c32bb2aa894b4bd29849839afe4f98728195","https://security.snyk.io/vuln/SNYK-JS-JSRSASIGN-15371175","https://security.snyk.io/vuln/SNYK-JAVA-ORGWEBJARSNPM-15812274","https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-4602.json","https://github.com/kjur/jsrsasign","https://gist.github.com/Kr0emer/7ecd2be7d17419e4677315ef3758faf5","https://bugzilla.redhat.com/show_bug.cgi?id=2450206","https://access.redhat.com/security/cve/CVE-2026-4602","https://access.redhat.com/errata/RHSA-2026:6926","https://access.redhat.com/errata/RHSA-2026:6912","https://access.redhat.com/errata/RHSA-2026:6720","https://access.redhat.com/errata/RHSA-2026:6568","https://access.redhat.com/errata/RHSA-2026:19410","https://access.redhat.com/errata/RHSA-2026:19409","https://access.redhat.com/errata/RHSA-2026:19375"],"severity":{"label":"high","score":7.5},"sources":[{"source":"osv","source_id":"GHSA-8qwj-4jxw-m8jw","url":"https://osv.dev/vulnerability/GHSA-8qwj-4jxw-m8jw"}],"summary":"jsrsasign: Negative Exponent Handling Leads to Signature Verification Bypass"}