GHSA-86w9-cpqp-85rv

Suggest an improvement
Source
https://github.com/advisories/GHSA-86w9-cpqp-85rv
Import Source
https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/09/GHSA-86w9-cpqp-85rv/GHSA-86w9-cpqp-85rv.json
JSON Data
https://api.osv.dev/v1/vulns/GHSA-86w9-cpqp-85rv
Aliases
Published
2026-09-03T21:31:15Z
Modified
2026-10-01T21:40:55Z
Severity
  • 7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N CVSS Calculator
  • 8.7 (High) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N CVSS Calculator
Summary
node-forge RSA PKCS#1 v1.5 signature verification accepts extra nested DigestAlgorithm elements
Details

node-forge through 1.4.0 fails to validate element count in nested DigestAlgorithm sequences during RSA PKCS#1 v1.5 signature verification. Attackers can embed garbage bytes inside the DigestAlgorithm sequence to forge valid signatures for arbitrary messages using low-exponent RSA keys. This is an incomplete fix for CVE-2026-33894.

Database specific 
{
    "cwe_ids":  [
        "CWE-347"
    ],
    "github_reviewed":  true,
    "github_reviewed_at":  "2026-10-01T21:09:09Z",
    "nvd_published_at":  "2026-09-03T19:17:31Z",
    "severity":  "HIGH"
}
References

Affected packages

npm / node-forge

Package

Name
node-forge
View open source insights on deps.dev
Purl
pkg:npm/node-forge

Affected ranges

Type
SEMVER
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Last Affected
1.4.0

Database specific

source 
"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/09/GHSA-86w9-cpqp-85rv/GHSA-86w9-cpqp-85rv.json"