Goal Reached Thanks to every supporter — we hit 100%!

Goal: 1000 CNY · Raised: 1359 CNY

100%
Buy Us a Coffee

CVE-2026-118774— Forge: Certificate signature verified with the issuer's RSA signature scheme

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 JavaScript 中传输层安全（TLS）的原生实现。在 1.4.1 版本之前，受影响的实现在处理相关输入或安全决策时，调用了 、 以及 中的逻辑。node-forge 从颁发者证书（issuer certificate）而非待验证的子证书（child certificate）中选取 RSA 填充方式和 RSASSA-PSS 参数。因此，当颁发者使用 PKCS#1 v1.5 签名时，一个声明为使用 RSASSA-PSS 签名的子证书可能被接受，即使其实际使用的是 PK

CVSS 3.7 · Low

Affected Version Matrix 1

VendorProduct Version RangeStatus
digitalbazaar forge < 1.4.1 affected
Get alerts for future matching vulnerabilities Log in to subscribe

I. Basic Information for CVE-2026-118774

Vulnerability Information
Have questions about the vulnerability? See if Shenlong's analysis helps!
View Shenlong Deep Dive ↗

Although we use advanced large model technology, its output may still contain inaccurate or outdated information.Shenlong tries to ensure data accuracy, but please verify and judge based on the actual situation.

Vulnerability Title
Forge: Certificate signature verified with the issuer's RSA signature scheme
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 1.4.1, the affected implementation used certificate.verify(child), _verifySignature(), lib/x509.js to process the relevant input or security decision. node-forge selected RSA padding and RSASSA-PSS parameters from the issuer certificate rather than the child certificate being verified. A child labeled as RSASSA-PSS could therefore be accepted with a PKCS#1 v1.5 signature when the issuer used PKCS#1 v1.5. The signature still had to be produced with the trusted issuer's private key, so this did not permit certificate identity forgery, but it could bypass policies that require a declared signature scheme. This issue is fixed in version 1.4.1.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
密码学签名的验证不恰当
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
digitalbazaar forge < 1.4.1 -

II. Public POCs for CVE-2026-118774

# POC Description Source Link Shenlong Link
AI-Generated POC Premium

No public POC found.

Login to generate AI POC

III. Intelligence Information for CVE-2026-118774

请登录查看更多情报信息。

Other References for CVE-2026-118774 (3)

Same Patch Batch · digitalbazaar · 2026-10-29 · 15 CVEs total

CVE-2026-118779 7.5 HIGH Forge: Regular expression denial of service in PEM decoding (pem.decode)
CVE-2026-118782 7.5 HIGH Forge: PKCS#12 MAC forgery and constant-key PBE via zero iteration count
CVE-2026-119188 7.5 HIGH Forge: Denial of service in TLS record processing via a record interleaved with a fragment
CVE-2026-119191 7.5 HIGH Forge: ASN.1 resource exhaustion via BIT STRING decoding in asn1.fromDer
CVE-2026-119187 7.5 HIGH Forge: Denial of service in TLS record processing via call stack exhaustion
CVE-2026-119190 7.4 HIGH Forge: X.509 basicConstraints bypass in verifyCertificateChain() via deprecated extension
CVE-2026-118778 5.9 MEDIUM Forge: TLS client crash when the server sends no certificate
CVE-2026-119186 5.9 MEDIUM Forge: AES-GCM authentication bypass via unvalidated tagLength option
CVE-2026-119189 5.9 MEDIUM Forge: X.509 pathLenConstraint not enforced by verifyCertificateChain() for CA certificate
CVE-2026-118777 4.8 MEDIUM Forge: Prototype Pollution in forge.http cookie handling via a malicious Set-Cookie
CVE-2026-118780 3.7 LOW Forge: verifyCertificateChain() removes trusted CA certificates with the same subject from
CVE-2026-118775 3.7 LOW Forge: ASN.1 OID first arc truncation in asn1.oidToDer
CVE-2026-118776 3.7 LOW Forge: Incomplete PKCS#7 padding validation in AES/DES CBC and ECB decryption
CVE-2026-118781 2.9 LOW Forge: Denial of Service via infinite loop in BigInteger.modInverse() with negative input

IV. Related Vulnerabilities

Same product: forge
Same vendor: digitalbazaar
Same weakness: CWE-347