# CVE-2026-119190: node-forge X.509 basicConstraints bypass via deprecated OIDs

Source: https://junglewise.ai/threats/cve-2026-119190-forge-also-called-node-forge-is-a-native-implementation-of  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-10-29. Updated: 2026-10-29  
License: CC BY 4.0 with a link back

CVE-2026-119190 · Severity: high · CVSS 7.4 · Published 2026-10-29

node-forge is a JavaScript library that implements cryptographic protocols including certificate chain verification for secure communications. A flaw in how node-forge interprets X.509 certificate extensions allows an attacker to bypass the basicConstraints check by using deprecated extension identifiers, enabling a malicious certificate holder to impersonate servers or clients by making their certificate appear to be a trusted certificate authority.

Technologies: [Digital Bazaar Node-Forge](https://junglewise.ai/threats/technologies/digital-bazaar-node-forge), [node-forge (npm)](https://junglewise.ai/threats/technologies/node-forge). Vendors: [Digital Bazaar](https://junglewise.ai/threats/vendors/digital-bazaar), [npm](https://junglewise.ai/threats/vendors/npm).

## Quick answers

**Is CVE-2026-119190 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-119190 being exploited in the wild.

**How severe is CVE-2026-119190?** High severity, with a CVSS score of 7.4, published 29 October 2026.

**Which products and versions are affected?** Digital Bazaar Node-Forge before 1.4.1; node-forge (npm) <= 1.4.0, SEMVER:introduced=0,fixed=1.4.1.

**Is there a fix for CVE-2026-119190?** Yes. node-forge (npm): upgrade to 1.4.1 or later. Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**How is CVE-2026-119190 attacked?** It is attacked over the network.

**Am I affected by CVE-2026-119190?** Check whether you run Digital Bazaar Node-Forge or node-forge (npm) at an affected version. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## How to fix

- node-forge (npm): upgrade to 1.4.1 or later

  ```sh
  npm install node-forge@1.4.1
  ```


## Technical details

node-forge incorrectly parses deprecated OIDs 2.5.29.10 and 2.5.29.13 as basicConstraints and uses the first matching extension name during certificate chain verification instead of strictly checking OID 2.5.29.19. An attacker with a certificate signed by a trusted CA can place a permissive deprecated-OID extension before the genuine basicConstraints extension to bypass the constraint check. The vulnerability requires the issuing CA to copy extensions from a certificate signing request without filtering.

## Affected products

- Digital Bazaar node-forge before 1.4.1

## Identifiers

- CVE-2026-119190
- GHSA-5x38-2vff-x55p

## Timeline

- 2026-10-29: disclosed
- 2026-10-27: patched

## References

- [https://github.com/digitalbazaar/forge/commit/58c06bc251856b409c30ecb35a93f5f6c9bbc84a](https://github.com/digitalbazaar/forge/commit/58c06bc251856b409c30ecb35a93f5f6c9bbc84a)
- [https://github.com/digitalbazaar/forge/releases/tag/v1.4.1](https://github.com/digitalbazaar/forge/releases/tag/v1.4.1)

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