{"id":"UBUNTU-CVE-2026-119190","details":"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.","modified":"2026-10-31T03:30:12.139187508Z","published":"2026-10-30T00:00:00Z","upstream":["CVE-2026-119190"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2026-119190"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2026-119190"},{"type":"REPORT","url":"https://github.com/digitalbazaar/forge/commit/58c06bc251856b409c30ecb35a93f5f6c9bbc84a"},{"type":"REPORT","url":"https://github.com/digitalbazaar/forge/releases/tag/v1.4.1"},{"type":"REPORT","url":"https://github.com/digitalbazaar/forge/security/advisories/GHSA-5x38-2vff-x55p"}],"affected":[{"package":{"name":"node-node-forge","ecosystem":"Ubuntu:20.04:LTS","purl":"pkg:deb/ubuntu/node-node-forge?arch=source&distro=focal"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.8.5~dfsg-2","0.9.1~dfsg-1"],"ecosystem_specific":{"binaries":[{"binary_version":"0.9.1~dfsg-1","binary_name":"libjs-node-forge"},{"binary_name":"node-node-forge","binary_version":"0.9.1~dfsg-1"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-119190.json"}},{"package":{"name":"node-node-forge","ecosystem":"Ubuntu:22.04:LTS","purl":"pkg:deb/ubuntu/node-node-forge?arch=source&distro=jammy"},"ranges":[{"type":"ECOSYSTEM","events":[{"introduced":"0"}]}],"versions":["0.10.0~dfsg-3","1.2.1~dfsg-2"],"ecosystem_specific":{"binaries":[{"binary_name":"libjs-node-forge","binary_version":"1.2.1~dfsg-2"},{"binary_name":"node-node-forge","binary_version":"1.2.1~dfsg-2"}]},"database_specific":{"source":"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-119190.json"}}],"schema_version":"1.9.2","severity":[{"type":"CVSS_V3","score":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:N"},{"type":"Ubuntu","score":"medium"}]}