CVE-2026-4600
Versions of the package jsrsasign before 11.1.1 are vulnerable to Improper Verification of Cryptographic Signature via the DSA domain-parameter validation in KJUR.crypto.DSA.setPublic (and the related DSA/X509 verification flow in src/dsa-2.0.js). An attacker can forge DSA signatures or X.509 certificates that X509.verifySignature() accepts by supplying malicious domain parameters such as g=1, y=1, and a fixed r=1, which make the verification equation true for any hash.
Vendor
Product
CWE
Yayın Tarihi
2026-03-23 06:16:21
Güncelleme
2026-03-23 16:41:55
Source Identifier
report@snyk.io
KEV Date Added
-
Kategoriler
Referanslar
https://gist.github.com/Kr0emer/bf15ddc097176e951659a24a8e9002a7
https://github.com/kjur/jsrsasign/commit/37b4c06b145c7bfd6bc2a6df5d0a12c56b15ef60
https://github.com/kjur/jsrsasign/pull/646
https://security.snyk.io/vuln/SNYK-JS-JSRSASIGN-15370940
https://gist.github.com/Kr0emer/bf15ddc097176e951659a24a8e9002a7