Vulnerability · Published Oct 29, 2026 · Assigned by GitHub_M
CVE-2026-118780Forge: verifyCertificateChain() removes trusted CA certificates with the same subject from the CA store
Low 3.7
In plain English
A low-severity improper certificate validation in forge from digitalbazaar. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.2% (higher than 7% of all known vulnerabilities). Fixed versions are available - upgrade the affected package.
Official description
Forge (also called node-forge) is a native implementation of Transport Layer Security in JavaScript. Prior to 1.4.1, the affected implementation used pki.verifyCertificateChain(), pki.createCaStore(), duplicate subject names to process the relevant input or security decision. node-forge modified the CA store while trying certificates that shared a subject name during pki.verifyCertificateChain(). A failed chain verification could permanently remove trusted CA certificates from the store, causing later valid chains to fail and creating a persistent availability impact for applications that reused the store. This issue is fixed in version 1.4.1.
Affected packages & fixed versions
| Ecosystem | Package | Fixed in | Advisory |
|---|---|---|---|
| Ubuntu:22.04:LTS | node-node-forge | no fix listed | UBUNTU-CVE-2026-118780 |
| npm | node-forge | 1.4.1 | GHSA-4487-j8r4-4g2f |
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| digitalbazaar | forge | < 1.4.1 |
Weakness: CWE-295, CWE-471 · Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:L