CVE-2026-4601
jsrsasign: jsrsasign: Private Key Recovery via Missing Cryptographic Step in DSA Signing
Einstufung nach Quelle
Trivys eigenes Label ist CRITICAL. Kritisch laut NVD. Niedriger laut GHSA (hoch), Red Hat (hoch).
Beschreibung
Versions of the package jsrsasign before 11.1.1 are vulnerable to Missing Cryptographic Step via the KJUR.crypto.DSA.signWithMessageHash process in the DSA signing implementation. An attacker can recover the private key by forcing r or s to be zero, so the library emits an invalid signature without retrying, and then solves for x from the resulting signature.
Betroffene Pakete und behobene Versionen
| Quelle | Paket | Behoben in |
|---|---|---|
| npm::GitHub Security Advisory npm | jsrsasign | 11.1.1 |
Referenzen
- https://access.redhat.com/errata/RHSA-2026:19375
- https://access.redhat.com/errata/RHSA-2026:19409
- https://access.redhat.com/errata/RHSA-2026:19410
- https://access.redhat.com/errata/RHSA-2026:6568
- https://access.redhat.com/errata/RHSA-2026:6720
- https://access.redhat.com/errata/RHSA-2026:6912
- https://access.redhat.com/errata/RHSA-2026:6926
- https://access.redhat.com/security/cve/CVE-2026-4601
Alle 18 Referenzen
- https://bugzilla.redhat.com/show_bug.cgi?id=2450209
- https://gist.github.com/Kr0emer/93789fe6efe5519db9692d4ad1dad586
- https://github.com/kjur/jsrsasign
- https://github.com/kjur/jsrsasign/commit/0710e392ec35de697ce11e4219c988ba2b5fe0eb
- https://github.com/kjur/jsrsasign/pull/645
- https://nvd.nist.gov/vuln/detail/CVE-2026-4601
- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-4601.json
- https://security.snyk.io/vuln/SNYK-JAVA-ORGWEBJARSNPM-15812269
- https://security.snyk.io/vuln/SNYK-JS-JSRSASIGN-15370941
- https://www.cve.org/CVERecord?id=CVE-2026-4601