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CVE-2026-118782— Forge: PKCS#12 MAC forgery and constant-key PBE via zero iteration count

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）是用 JavaScript 原生实现的传输层安全（TLS）库。在 1.4.1 版本之前，node-forge 会接受 PKCS#12 消息认证码（MAC）或基于密码的 PKCS#12 加密迭代次数为零或负数的输入。此时， 会返回一个与密码和盐值无关的固定密钥，导致通过 处理的特制 PKCS#12 输入能够绕过基于密码的完整性校验。此外，可预测的加密密钥和初始化向量（IV）也影响了使用 或 的 PKCS#12 基于密码的加密（PBE），包括被遮蔽的密钥包（shrouded k

CVSS 7.5 · High

Possible ATT&CK Techniques 1 AI

T1190 · Exploit Public-Facing Application

Affected Version Matrix 1

VendorProduct Version RangeStatus
digitalbazaar forge < 1.4.1 affected
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I. Basic Information for CVE-2026-118782

Vulnerability Information
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Vulnerability Title
Forge: PKCS#12 MAC forgery and constant-key PBE via zero iteration count
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, node-forge accepted a PKCS#12 MAC or PKCS#12 password-based encryption iteration count of zero or less. pki.pbe.generatePkcs12Key() then returned a constant key independent of the password and salt, allowing crafted PKCS#12 input processed by forge.pkcs12.pkcs12FromAsn1() to bypass password-based integrity checks. Predictable encryption keys and IVs also affected PKCS#12 PBE using pbeWithSHAAnd3-KeyTripleDES-CBC or pbewithSHAAnd40BitRC2-CBC, including shrouded key bags, encrypted SafeContents, and PKCS#8 ENCRYPTED PRIVATE KEY input processed independently by forge.pki.decryptPrivateKeyInfo(). PBES2/PBKDF2-encrypted content is unaffected. This issue is fixed in version 1.4.1.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
完整性检查值验证不恰当
Source: CVE Program / CVE List V5

Affected Products

Vendor Product Affected Versions CPE Subscribe
digitalbazaar forge < 1.4.1 -

II. Public POCs for CVE-2026-118782

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III. Intelligence Information for CVE-2026-118782

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Other References for CVE-2026-118782 (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-2026-119188 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-2026-118774 3.7 LOW Forge: Certificate signature verified with the issuer's RSA signature scheme
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-354