CVE-2026-119190: Forge: X.509 basicConstraints bypass in verifyCertificateChain() via deprecated extension OIDs 2.5.29.10 and 2.5.29.13
Vulnerability summary
CVE-2026-119190 is a high (CVSS 7.4) Improper Certificate Validation vulnerability in digitalbazaar forge. EPSS estimates a 0.25% chance of exploitation in the next 30 days, higher than 15.9% of scored vulnerabilities.
Severe, CVSS 7.4 (CVE.org); no exploitation reported by the 5 checked sources; EPSS 0% (FIRST, 03-11-2026)
Source freshness unavailable
How is this decided?Timeline
- 29-10-2026PublishedVulnerability first disclosed.
- 29-10-2026Last modifiedVulnerability information updated.
Description
Forge (also called node-forge) is a native implementation of Transport Layer Security in JavaScript. Prior to 1.4.1, node-forge parsed deprecated extension OIDs 2.5.29.10 and 2.5.29.13 as basicConstraints, and pki.verifyCertificateChain() used the first extension with that name. Exploitation requires a CA trusted by the application to issue a certificate carrying an attacker-supplied deprecated-OID extension, commonly because the CA copies extensions from a certificate signing request. By placing a permissive deprecated extension before the genuine 2.5.29.19 basicConstraints extension, the certificate holder could have the certificate accepted as a CA and issue certificates for arbitrary names, enabling server or client impersonation. If the issuing CA adds a keyUsage extension without keyCertSign, node-forge rejects the chain. This issue is fixed in version 1.4.1.
CVSS metrics
6 scores · 6 sources · 1 version- NVDNIST7.4HighCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
- OSV · NpmEcosystem advisory · calculated7.4HighCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
- OSV · UbuntuEcosystem advisory · calculated7.4HighCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
- OSV · WolfiEcosystem advisory · calculated7.4HighCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
- OSV · ChainguardEcosystem advisory · calculated7.4HighCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N
EPSS trend
Probability
0.25%
Chance of exploitation in the next 30 days
Percentile
16%
Versus all other CVEs
30-day change
Change unavailable
Change unavailable
Known exploited
Compare KEV catalogsNot in the CISA KEV catalog.
Not in the ENISA CNW catalog.
Not in the CIRCL catalog.
Public exploits
0 foundNo public exploits indexed.
Weaknesses
CWE · root causeAffected systems
Known conditions: network-reachable, no authentication, no user interaction (CVSS vector). Other conditions: not stated in public data.
Chainguard18 products
- arangodb-3.11All versions (No fix recorded) | < 3.11.14.6-r4
- arangodb-3.12All versions (No fix recorded) | < 3.12.13-r1
- dotstatsuite-supercoreAll versions (No fix recorded) | < 3.1.0_git20261022-r4
- gitlab-rails-ce-18.10All versions (No fix recorded)
- gitlab-rails-ce-18.8All versions (No fix recorded)
Wolfi2 products
- jitsucom-jitsu-consoleAll versions (No fix recorded) | < 2.11.0-r42
- kubeflow-centraldashboardAll versions (No fix recorded) | < 2.0.0-r8
Digitalbazaar1 product
- forge< 1.4.1
Npm1 product
- node-forge< 1.4.1
Ubuntu1 product
- node-node-forgeAll versions (No fix recorded)
5 vendors · 23 products
References
8 links- github.com/digitalbazaar/forge/security/advisories/GHSA-5x38-2vff-x55pX Refsource CONFIRMWEBREPORTAdvisory
- github.com/digitalbazaar/forge/commit/58c06bc251856b409c30ecb35a93f5f6c9bbc84aX Refsource MISCWEBREPORTFIX