Vulnerability library
Security checkJuly 21, 2026

jsrsasign: DSA signatures or X.509 certificates can be forged via DSA domain-parameter validation in KJUR.crypto.DSA.set

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High severitynpmjsrsasign

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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.

Recommendation

Update the jsrsasign package to the latest compatible version. Followings are version details:

  • Affected version(s): < 11.1.1
  • Patched version(s): 11.1.1

References

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Related Issues

See something that needs correcting? Let us knowUpdated July 21, 2026