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7.4 High

CVE-2026-4600 Versions of the package jsrsasign before 11.1.1 are vulnerable to Improper Verification of Cryptographic Signature via…

Description

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.

Affected products and versions

Product Affected versions Fixed in
jsrsasign 11.1 earliest → < 11.1.1 11.1.1
org.webjars.npm:jsrsasign Versions not published
Migration Toolkit for Virtualization 2.1 1779139872 earliest → < 1779139872 1779139872
Migration Toolkit for Virtualization 2.9 1778927462 earliest → < 1778927462 1778927462
Red Hat Quay 3.12 1775253092 earliest → < 1775253092 1775253092
Red Hat Quay 3.15 1775169219 earliest → < 1775169219 1775169219
Red Hat Quay 3.16 1779204086 earliest → < 1779204086 1779204086
Red Hat Quay 3.1 1775169155 earliest → < 1775169155 1775169155
Red Hat Quay 3.9 1775169218 earliest → < 1775169218 1775169218
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Product Affected versions Fixed in
Red Hat Quay 3.10 1775169155 earliest → < 1775169155 1775169155

References

Timeline

  1. Published
  2. Last modified

Other CVEs of jsrsasign

The 8 CVEs of jsrsasign →
CVE-2026-4603 Versions of the package jsrsasign before 11.1.1 are vulnerable to Division by zero due to the RSASetPublic/KEYUTIL… 5.9 Medium CVE-2026-4601 Versions of the package jsrsasign before 11.1.1 are vulnerable to Missing Cryptographic Step via the… 8.7 High CVE-2026-4599 Versions of the package jsrsasign from 7.0.0 and before 11.1.1 are vulnerable to Incomplete Comparison with Missing… 9.1 Critical CVE-2026-4598 Versions of the package jsrsasign before 11.1.1 are vulnerable to Infinite loop via the bnModInverse function in… 7.5 High
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