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    CVE-2026-33891

    Forge (also called `node-forge`) is a native implementation of Transport Layer Security in JavaScript. Prior to version 1.4.0, a Denial of Service (DoS) vulnerability exists in the node-forge library due to an infinite loop in the BigInteger.modInverse() function (inherited from the bundled jsbn library). When modInverse() is called with a zero value as input, the internal Extended Euclidean Algorithm enters an unreachable exit condition, causing the process to hang indefinitely and consume 100% CPU. Version 1.4.0 patches the issue.

    Published:Mar 27, 2026
    Last Modified:Apr 8, 2026
    EPS:Mar 27, 2026
    EPSS Score:0.00052
    CVSS Score:7.5

    Affected Products

    Vendor
    Digitalbazaar
    Product
    Forge

    Exploits

    https://github.com/digitalbazaar/forge/security/advisories/GHSA-5m6q-g25r-mvwx

    Common Attack Pattern Enumeration and Classification (CAPEC)

    No CAPEC recorded yet

    Related CVEs

    CVE-2026-85393 (CVSS 8.7) — node-forge through 1.4.0 fails to validate element count in nested DigestAlgorithm sequences during RSA PKCS#1…
    CVE-2026-33896 (CVSS 7.4) — Forge (also called `node-forge`) is a native implementation of Transport Layer Security in JavaScript. Prior t…
    CVE-2026-33895 (CVSS 7.5) — Forge (also called `node-forge`) is a native implementation of Transport Layer Security in JavaScript. Prior t…
    CVE-2026-33894 (CVSS 7.5) — Forge (also called `node-forge`) is a native implementation of Transport Layer Security in JavaScript. Prior t…
    CVE-2025-66030 (CVSS 6.3) — Forge (also called `node-forge`) is a native implementation of Transport Layer Security in JavaScript. An Inte…
    CVE-2025-66031 (CVSS 8.7) — Forge (also called `node-forge`) is a native implementation of Transport Layer Security in JavaScript. An Unco…
    CVE-2025-12816 (CVSS 8.6) — An interpretation-conflict (CWE-436) vulnerability in node-forge versions 1.3.1 and earlier enables unauthenti…
    CVE-2022-24772 (CVSS 7.5) — Forge (also called `node-forge`) is a native implementation of Transport Layer Security in JavaScript. Prior t…
    CVE-2022-24771 (CVSS 7.5) — Forge (also called `node-forge`) is a native implementation of Transport Layer Security in JavaScript. Prior t…
    CVE-2022-24773 (CVSS 5.3) — Forge (also called `node-forge`) is a native implementation of Transport Layer Security in JavaScript. Prior t…

    Common Vulnerability Scoring System

    Attack Vector
    Network
    Adjacent
    Local
    Physical
    Privileges Required
    None
    Low
    High
    User Interaction
    None
    Required
    Scope
    Unchanged
    Changed
    Confidentiality
    None
    Low
    High
    Integrity
    None
    Low
    High
    Availability
    None
    Low
    High