{"id":"CVE-2026-118687","published":"2026-10-28T19:17:35.807","lastModified":"2026-10-28T19:17:35.807","description":"Coder before 2.29.21, 2.30.0 before 2.34.12, 2.35.0 before 2.35.9, 2.36.0 before 2.36.7, and 2.37.0 before 2.37.4 does not validate the audience claim of GCE instance-identity JWTs at the POST /api/v2/workspaceagents/google-instance-identity endpoint. Attackers who obtain an unexpired format=full identity token minted for another relying party can replay it to obtain that workspace agent's session token, which remains valid until the workspace's next build.","cvssScore":6.5,"cvssSeverity":"MEDIUM","cvssVector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:L/A:N","cwes":["CWE-441"],"vendors":[],"products":[],"references":[{"url":"https://github.com/coder/coder/security/advisories/GHSA-24vh-q7rg-243w","tags":[]},{"url":"https://www.vulncheck.com/advisories/coder-before-2.29.21-2.34.12-2.35.9-2.36.7-and-2.37.4-missing-audience-validation-in-gcp-instance-identity-authentication","tags":[]}],"exploitRefs":[{"url":"https://github.com/coder/coder/security/advisories/GHSA-24vh-q7rg-243w","tags":[]}],"hasPoc":true,"ai":null}