CVE-2026-118780
Forge: verifyCertificateChain() removes trusted CA certificates with the same subject from the CA store
Forge (also called node-forge) is a native implementation of Transport Layer Security in JavaScript. Prior to 1.4.1, the affected implementation used pki.verifyCertificateChain(), pki.createCaStore(), duplicate subject names to process the relevant input or security decision. node-forge modified the CA store while trying certificates that shared a subject name during pki.verifyCertificateChain(). A failed chain verification could permanently remove trusted CA certificates from the store, causing later valid chains to fail and creating a persistent availability impact for applications that reused the store. This issue is fixed in version 1.4.1.
Fixes and workarounds
Fix
node-forge (npm): OSV reports a fixed version 1.4.1. Check the advisory for supported release branches.
Source: OSV GHSA-4487-j8r4-4g2fAffected products and versions
| Product | Versions | Authority |
|---|---|---|
| forge digitalbazaar |
< 1.4.1 (affected) | CNA: GitHub_M |
node-forgenode-forge
npm |
≥ 0; < 1.4.1 (affected, semver); OSV events: introduced 0; fixed 1.4.1Source events (semver)Other versions: unaffected |
OSV GHSA-4487-j8r4-4g2f |
Version ranges are source assertions. Check the vendor advisory and your installed configuration before determining exposure.
CVSS assessments
| Version / score | Vector | Authority |
|---|---|---|
| 3.1 / 3.7 low |
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L | CNA: GitHub_M |
Exploit evidence
- https://github.com/digitalbazaar/forge/security/advisories/GHSA-4487-j8r4-4g2f
exploit · ADP: CISA-ADP
References
- https://github.com/digitalbazaar/forge/security/advisories/GHSA-4487-j8r4-4g2fCNA: GitHub_M · x_refsource_CONFIRM
- https://github.com/digitalbazaar/forge/commit/f6555609bd30f442fbfacd543155928ceccf98d0CNA: GitHub_M · x_refsource_MISC
- https://github.com/digitalbazaar/forge/releases/tag/v1.4.1CNA: GitHub_M · x_refsource_MISC
- https://github.com/digitalbazaar/forge/security/advisories/GHSA-4487-j8r4-4g2fADP: CISA-ADP · exploit
- https://github.com/advisories/GHSA-4487-j8r4-4g2fOSV / GitHub Security Advisories · advisory
- https://osv.dev/vulnerability/GHSA-4487-j8r4-4g2fOSV / GitHub Security Advisories · osv
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