CVE-2026-118780: Forge: verifyCertificateChain() removes trusted CA certificates with the same subject from the CA store

October 30, 2026

When a CA store created by pki.createCaStore() holds two or more certificates with the same subject name, pki.verifyCertificateChain() permanently removes those certificates from the store while trying each one as the issuer. A peer can send any certificate that names that subject as its issuer to make all later verifications against those CA certificates fail. Fixed in node-forge 1.4.1.

References

github.com/advisories/GHSA-4487-j8r4-4g2f
github.com/digitalbazaar/forge/commit/f6555609bd30f442fbfacd543155928ceccf98d0
github.com/digitalbazaar/forge/releases/tag/v1.4.1
github.com/digitalbazaar/forge/security/advisories/GHSA-4487-j8r4-4g2f
nvd.nist.gov/vuln/detail/CVE-2026-118780

Code Behaviors & Features

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