CVE-2026-125332

Forge (also called node-forge) is a native implementation of Transport Layer Security in JavaScript. Prior to 1.4.3, a forge.tls client accepts a ServerHello compression_method that it did not offer. When the client later handles ServerHelloDone, tls.createConnectionState() rejects the unsupported compression algorithm by throwing an Error that propagates from connection.process(). A malicious server or an on-path attacker can alter the unauthenticated ServerHello compression byte before the server Finished message and terminate a Node.js process when the application does not catch the exception. The affected client paths include direct forge.tls use, forge.tls.wrapSocket, and forge.http; forge.tls servers are not affected, and the issue has no confidentiality or integrity impact. This issue is fixed in version 1.4.3.

• CWE-20
• CWE-248

• https://github.com/digitalbazaar/forge/commit/1d9816d333c23c523ef2bd8b24282c87db2654ef
• https://github.com/digitalbazaar/forge/pull/1169
• https://github.com/digitalbazaar/forge/releases/tag/v1.4.3
• https://github.com/digitalbazaar/forge/security/advisories/GHSA-w4xr-hqv8-ch44

Published

Nov 10, 2026

Last Modified

Nov 10, 2026

Status

Awaiting Analysis

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