CVE-2026-118775

Forge: ASN.1 OID first arc truncation in asn1.oidToDer

Published Oct 29, 2026 CVSS 3.1 · 3.7 Low EPSS < 1% KEV · Not listed
Description
Forge (also called node-forge) is a native implementation of Transport Layer Security in JavaScript. Prior to 1.4.1, asn1.oidToDer() in lib/asn1.js did not range-check the first two arcs of an OID. An application that accepted an untrusted OID string, checked or authorized that string, and then encoded it with asn1.oidToDer() could emit DER representing a different, trusted OID from the one that was checked. DER parsing is not affected. This issue is fixed in version 1.4.1.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

Source ID Title
Github GHSA Github GHSA GHSA-4642-5mcj-2rqw Forge: ASN.1 OID first arc truncation in asn1.oidToDer
History
Type Values Removed Values Added
CPEs cpe:2.3:a:digitalbazaar:forge:*:*:*:*:*:*:*:*
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
First Time appeared Digitalbazaar
Digitalbazaar forge
Vendors & Products Digitalbazaar
Digitalbazaar forge
Type Values Removed Values Added
Description Forge (also called node-forge) is a native implementation of Transport Layer Security in JavaScript. Prior to 1.4.1, asn1.oidToDer() in lib/asn1.js did not range-check the first two arcs of an OID. An application that accepted an untrusted OID string, checked or authorized that string, and then encoded it with asn1.oidToDer() could emit DER representing a different, trusted OID from the one that was checked. DER parsing is not affected. This issue is fixed in version 1.4.1.
Title Forge: ASN.1 OID first arc truncation in asn1.oidToDer
Weaknesses CWE-190
References
Metrics cvssV3_1

{'score': 3.7, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:N'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
GitHub_M
Published
Updated
Oct 29, 2026, 8:22 PM
Reserved
Oct 28, 2026, 7:20 PM
Status
Analyzed
Published
Oct 29, 2026, 7:17 PM
Modified
Nov 4, 2026, 2:12 PM
Severity
Low
Public date
Oct 29, 2026, 6:35 PM