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.

INFO

Published Date :

2026-03-23T05:00:08.475Z

Last Modified :

2026-03-23T15:53:02.042Z

Source :

snyk
AFFECTED PRODUCTS

The following products are affected by CVE-2026-4600 vulnerability.

Vendors Products
Jsrsasign Project
  • Jsrsasign
Kjur
  • Jsrsasign
REFERENCES

Here, you will find a curated list of external links that provide in-depth information to CVE-2026-4600.

URL Resource
https://gist.github.com/Kr0emer/bf15ddc097176e951659a24a8e9002a7 cve-icon cve-icon cve-icon
https://github.com/kjur/jsrsasign/commit/37b4c06b145c7bfd6bc2a6df5d0a12c56b15ef60 cve-icon cve-icon cve-icon
https://github.com/kjur/jsrsasign/pull/646 cve-icon cve-icon cve-icon
https://nvd.nist.gov/vuln/detail/CVE-2026-4600 cve-icon
https://security.snyk.io/vuln/SNYK-JS-JSRSASIGN-15370940 cve-icon cve-icon cve-icon
https://www.cve.org/CVERecord?id=CVE-2026-4600 cve-icon
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CVSS Vulnerability Scoring System

Detailed values of each vector for above chart.
Attack Vector
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Attack Requirements
Privileges Required
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SS Confidentiality
SS Integrity
SS Availability
Detailed values of each vector for above chart.
Attack Vector
Attack Complexity
Privileges Required
User Interaction
Scope
Confidentiality Impact
Integrity Impact
Availability Impact