{"id":"UBUNTU-CVE-2026-125335","details":"Forge (also called node-forge) is a native implementation of Transport Layer Security in JavaScript. Prior to 1.4.3, ed25519.verify() decodes a public key in crypto_sign_open() without rejecting small-order points or their non-canonical encodings. With S = 0 and a small-order R value, an attacker who can choose the public key can produce signatures that verify for many messages, or all messages with the identity key, without a private key. This can defeat proof-of-possession, attribution, non-repudiation, or deduplication checks that rely on a signature being bound to the message. Keys produced by normal Ed25519 key generation are not small-order, so applications that verify only trusted or internally generated public keys are not affected. This issue is fixed in version 1.4.3.","modified":"2026-11-12T23:46:37.015967483Z","published":"2026-11-12T00:00:00Z","upstream":["CVE-2026-125335"],"references":[{"type":"REPORT","url":"https://ubuntu.com/security/CVE-2026-125335"},{"type":"REPORT","url":"https://www.cve.org/CVERecord?id=CVE-2026-125335"},{"type":"REPORT","url":"https://github.com/digitalbazaar/forge/commit/1b77e6f20082d7484479303d0252d5f427651295"},{"type":"REPORT","url":"https://github.com/digitalbazaar/forge/pull/1169"},{"type":"REPORT","url":"https://github.com/digitalbazaar/forge/releases/tag/v1.4.3"},{"type":"REPORT","url":"https://github.com/digitalbazaar/forge/security/advisories/GHSA-6889-vf6x-f3g5"}],"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_name":"libjs-node-forge","binary_version":"0.9.1~dfsg-1"},{"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-2026-125335.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_version":"1.2.1~dfsg-2","binary_name":"libjs-node-forge"},{"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-2026-125335.json"}}],"schema_version":"1.9.2","severity":[{"type":"Ubuntu","score":"medium"}]}