Bug 2528186 (CVE-2026-85393) - CVE-2026-85393 node-forge: node-forge: Signature forgery vulnerability in RSA PKCS#1 v1.5 verification
Summary: CVE-2026-85393 node-forge: node-forge: Signature forgery vulnerability in RSA...
Keywords:
Status: NEW
Alias: CVE-2026-85393
Product: Security Response
Classification: Other
Component: vulnerability
Version: unspecified
Hardware: All
OS: Linux
high
high
Target Milestone: ---
Assignee: Product Security
QA Contact:
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2026-09-03 19:02 UTC by OSIDB Bzimport
Modified: 2026-09-23 16:12 UTC (History)
82 users (show)

Fixed In Version:
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Description OSIDB Bzimport 2026-09-03 19:02:53 UTC 
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.
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