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CVE-2026-125332— Forge: TLS client crash on an unsupported ServerHello compression method

Quick assessment

Affected
digitalbazaar forge
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

Forge（也称为 node-forge）是一个用 JavaScript 原生实现的传输层安全（TLS）库。在 1.4.3 版本之前，forge.tls 客户端会接受一个它并未提供的 ServerHello 消息中的 compression_method 字段。当客户端随后处理 ServerHelloDone 消息时，tls.createConnectionState() 会因不支持该压缩算法而抛出异常，该异常会从 connection.process() 向外传播。恶意服务器或路径上的攻击者可在服务器发送 Fin

CVSS 5.9 · Medium

Affected Version Matrix 1

VendorProduct Version RangeStatus
digitalbazaar forge < 1.4.3 affected
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I. Basic Information for CVE-2026-125332

Vulnerability Information
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Vulnerability Title
Forge: TLS client crash on an unsupported ServerHello compression method
Source: CVE Program / CVE List V5
Vulnerability 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 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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H
Source: CVE Program / CVE List V5
Vulnerability Type
输入验证不恰当
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
digitalbazaar forge < 1.4.3 -

II. Public POCs for CVE-2026-125332

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III. Intelligence Information for CVE-2026-125332

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Other References for CVE-2026-125332 (4)

Same Patch Batch · digitalbazaar · 2026-11-10 · 5 CVEs total

CVE-2026-125336 7.4 HIGH Forge: X.509 nameConstraints not enforced by verifyCertificateChain()
CVE-2026-125333 5.9 MEDIUM Forge: ReDoS in forge.http response header and cookie trimming
CVE-2026-125334 5.9 MEDIUM Forge: TLS client crash on a handshake record received without a session
CVE-2026-125335 3.7 LOW Forge: Ed25519 signature verification accepts small-order public keys

IV. Related Vulnerabilities

Same product: forge
Same vendor: digitalbazaar
Same weakness: CWE-20