GHSA-wvqx-v3f6-w8rh

Suggest an improvement
Source
https://github.com/advisories/GHSA-wvqx-v3f6-w8rh
Import Source
https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/03/GHSA-wvqx-v3f6-w8rh/GHSA-wvqx-v3f6-w8rh.json
JSON Data
https://api.osv.dev/v1/vulns/GHSA-wvqx-v3f6-w8rh
Aliases
Published
2026-03-23T06:30:29Z
Modified
2026-07-21T15:15:51Z
Severity
  • 7.4 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N CVSS Calculator
  • 8.1 (High) CVSS_V4 - CVSS:4.0/AV:N/AC:H/AT:N/PR:N/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:P CVSS Calculator
Summary
jsrsasign: DSA signatures or X.509 certificates can be forged via DSA domain-parameter validation in KJUR.crypto.DSA.setPublic
Details

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.

Database specific 
{
    "cwe_ids":  [
        "CWE-347"
    ],
    "github_reviewed":  true,
    "github_reviewed_at":  "2026-03-30T19:29:53Z",
    "nvd_published_at":  "2026-03-23T06:16:21Z",
    "severity":  "HIGH"
}
References

Affected packages

npm / jsrsasign

Package

Name
jsrsasign
View open source insights on deps.dev
Purl
pkg:npm/jsrsasign

Affected ranges

Type
SEMVER
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
11.1.1

Database specific

source 
"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/03/GHSA-wvqx-v3f6-w8rh/GHSA-wvqx-v3f6-w8rh.json"