Description
Forge (also called node-forge) is a native implementation of Transport Layer Security in JavaScript. Prior to 1.4.3, a forge.tls client can pass a handshake record to tls.handleHandshake() while the connection has no session, including after a close_notify alert, after the application calls close(), or before handshake() is called. The handler dereferences c.session.md5 before dispatching the message, causing a TypeError to propagate from connection.process(). A malicious server or on-path attacker can deliver the record, including after a reset when the connection uses no encryption, and terminate a Node.js process if the application does not catch the exception. forge.tls servers are not affected, and there is no confidentiality or integrity impact. This issue is fixed in version 1.4.3.
Published: 2026-11-10
Score: 5.9 Medium
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

No vendor fix or workaround currently provided.

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Tracking

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Advisories
Source ID Title
Github GHSA Github GHSA GHSA-j8rw-jp99-435v Forge: TLS client crash on a handshake record received without a session
History

Thu, 12 Nov 2026 22:15:00 +0000

Type Values Removed Values Added
First Time appeared Digitalbazaar
Digitalbazaar forge
Vendors & Products Digitalbazaar
Digitalbazaar forge

Tue, 10 Nov 2026 19:00:00 +0000

Type Values Removed Values Added
Description Forge (also called node-forge) is a native implementation of Transport Layer Security in JavaScript. Prior to 1.4.3, a forge.tls client can pass a handshake record to tls.handleHandshake() while the connection has no session, including after a close_notify alert, after the application calls close(), or before handshake() is called. The handler dereferences c.session.md5 before dispatching the message, causing a TypeError to propagate from connection.process(). A malicious server or on-path attacker can deliver the record, including after a reset when the connection uses no encryption, and terminate a Node.js process if the application does not catch the exception. forge.tls servers are not affected, and there is no confidentiality or integrity impact. This issue is fixed in version 1.4.3.
Title Forge: TLS client crash on a handshake record received without a session
Weaknesses CWE-476
References
Metrics cvssV3_1

{'score': 5.9, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H'}


Subscriptions

Digitalbazaar Forge
cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published:

Updated: 2026-11-10T18:49:55.508Z

Reserved: 2026-11-09T21:22:55.598Z

Link: CVE-2026-125334

cve-icon Vulnrichment

No data.

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-11-10T19:21:11.090

Modified: 2026-11-10T21:46:34.010

Link: CVE-2026-125334

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-11-12T22:00:09Z

Weaknesses