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CVE-2026-33896

Forge has a basicConstraints bypass in its certificate chain verification (RFC 5280 violation)

Published: Mar 27, 2026Updated: Jul 15, 2026 Sources: CVE List NVDCWE-295
7.4HIGH
NVD MITRE
EPSS Score
0.3%
Top 72.7%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
Patch Available
Self-Check
Not available

Description

Forge (also called `node-forge`) is a native implementation of Transport Layer Security in JavaScript. Prior to version 1.4.0, `pki.verifyCertificateChain()` does not enforce RFC 5280 basicConstraints requirements when an intermediate certificate lacks both the `basicConstraints` and `keyUsage` extensions. This allows any leaf certificate (without these extensions) to act as a CA and sign other certificates, which node-forge will accept as valid. Version 1.4.0 patches the issue.

No summary for this CVE yet.

CVSS Vector Breakdown

AV:NAC:HPR:NUI:NS:UC:HI:HA:N
Exploitability
AV:NAttack Vector
Network
AC:HAttack Complexity
High
PR:NPrivileges Required
None
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:HConfidentiality
High
I:HIntegrity
High
A:NAvailability
None
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Weaknesses

CWE-295

Affected Products

digitalbazaar
commercialaka digitalbazaar/forge
forgeLibrary
Security Products / pki-crypto

Exploitability

Official Patch Available
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Attack Graph

Products CVE Techniques Tactics

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MITRE ATT&CK

1 technique
Collection
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References

https://github.com/digitalbazaar/forge/security/advisories/GHSA-2328-f5f3-gj25
github.com
https://github.com/digitalbazaar/forge/commit/2e492832fb25227e6b647cbe1ac981c123171e90
github.com
https://access.redhat.com/errata/RHSA-2026:13826
access.redhat.com
and 6 more references View all →

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