CVE-2026-118774 Forge: Certificate signature verified with the issuer's RSA signature scheme

Low 3.7 Published Updated
Exploited in the wild
Not known
Fix
None listed

What is CVE-2026-118774?

CVE-2026-118774 is a low-severity vulnerability in digitalbazaar forge, published on 29 Oct 2026.

Official description

Forge (also called node-forge) is a native implementation of Transport Layer Security in JavaScript. Prior to 1.4.1, the affected implementation used certificate.verify(child), _verifySignature(), lib/x509.js to process the relevant input or security decision. node-forge selected RSA padding and RSASSA-PSS parameters from the issuer certificate rather than the child certificate being verified. A child labeled as RSASSA-PSS could therefore be accepted with a PKCS#1 v1.5 signature when the issuer used PKCS#1 v1.5. The signature still had to be produced with the trusted issuer's private key, so this did not permit certificate identity forgery, but it could bypass policies that require a declared signature scheme. This issue is fixed in version 1.4.1.

Weakness: CWE-347

Which versions are affected by CVE-2026-118774?

How do I fix CVE-2026-118774?

No fix has been published for CVE-2026-118774 yet. Limit exposure of the affected software until one is available.

Is CVE-2026-118774 being exploited?

There is no known exploitation of CVE-2026-118774 in the wild and no public exploit code.

Sources

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