CVE-2026-85393 – node-forge through 1.4.0 RSA PKCS#1 v1.5 Signature Forgery via Nested DigestAlgorithm Padding

​CVE ID :CVE-2026-85393

Published : Sept. 3, 2026, 6:54 p.m. | 7 minutes ago

Description :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.

Severity: 8.7 | HIGH

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