{"schema":"threatline.record/2","record":{"id":"CVE-2026-118687","aliases":["GHSA-24vh-q7rg-243w"],"summary":"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","details":"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.","categories":["Unclassified"],"product":"coder","vendor":"coder","ecosystem":null,"affected_ranges":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-118687","source_modified_at":"2026-10-28T18:59:56.265Z","fetched_at":"2026-10-28T20:58:01.013507Z","product":"coder","vendor":"coder","versions":[{"version":"2.37.0","status":"affected","versionType":"semver","lessThan":"2.37.4"},{"version":"2.37.4","status":"unaffected","versionType":"semver"}],"defaultStatus":"unaffected"},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-118687","source_modified_at":"2026-10-28T18:59:56.265Z","fetched_at":"2026-10-28T20:58:01.013507Z","product":"coder","vendor":"coder","versions":[{"version":"2.36.0","status":"affected","versionType":"semver","lessThan":"2.36.7"},{"version":"2.36.7","status":"unaffected","versionType":"semver"}],"defaultStatus":"unaffected"},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-118687","source_modified_at":"2026-10-28T18:59:56.265Z","fetched_at":"2026-10-28T20:58:01.013507Z","product":"coder","vendor":"coder","versions":[{"version":"2.35.0","status":"affected","versionType":"semver","lessThan":"2.35.9"},{"version":"2.35.9","status":"unaffected","versionType":"semver"}],"defaultStatus":"unaffected"},{"source":"CVE 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List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-118687","source_modified_at":"2026-10-28T18:59:56.265Z","fetched_at":"2026-10-28T20:58:01.013507Z","package":{"name":"coder","ecosystem":null},"version":"2.34.12","basis":"first unaffected version stated in the CVE record"},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-118687","source_modified_at":"2026-10-28T18:59:56.265Z","fetched_at":"2026-10-28T20:58:01.013507Z","package":{"name":"coder","ecosystem":null},"version":"2.29.21","basis":"first unaffected version stated in the CVE record"}],"cvss":8.3,"severity":"High","kev":{"listed":false},"epss":{"probability":null,"percentile":null,"score_date":null},"published_at":"2026-10-28T18:59:56.265Z","modified_at":"2026-10-28T18:59:56.265Z","provenance":[{"source":"CVE List","url":"https://www.cve.org/CVERecord?id=CVE-2026-118687","fetched_at":"2026-10-28T20:58:01.013507Z","source_modified_at":"2026-10-28T18:59:56.265Z"}],"sources":["CVE List"],"references":[{"source":"CVE List","url":"https://github.com/coder/coder/security/advisories/GHSA-24vh-q7rg-243w","tags":["vendor-advisory"]},{"source":"CVE List","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":["third-party-advisory"]}],"locations":[],"motoko_assessment":{"status":"requires_architecture_review","automatic_remediation":false},"cve_state":"PUBLISHED","cvss_source":"CVE List","classification":{"method":"product-first software-layer rules","rules_version":"2.1","matched_on":null,"confidence":"unknown","reviewed":false},"change_timestamp":"2026-10-28T18:59:56.265Z","content_hash":"02ffc4d74b4f3d7c2b4d50a81c040f63060d9f7455d9c6947eacaa7ef9728239"}}