{"schema":"threatline.record/2","record":{"id":"CVE-2026-111927","aliases":["GHSA-h58h-qvv5-xvwg"],"summary":"Coder before 2.35.4 Credential Theft via Workspace Proxy Hostname Prefix Match","details":"Coder before 2.29.20, 2.33.0 before 2.33.12, 2.34.0 before 2.34.8, and 2.35.0 before 2.35.4 contains an improper hostname validation flaw in GetWorkspaceProxyByHostname whose SIMILAR TO pattern performs a prefix match, so any domain that is a string prefix of a workspace-proxy access URL is trusted as a proxy. Attackers owning such a domain can lure an authenticated victim to a crafted /api/v2/applications/auth-redirect link, capture the redirected application_connect API key, and replay it to access the victim's workspace apps.","categories":["Unclassified"],"product":"coder","vendor":"coder","ecosystem":null,"affected_ranges":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-111927","source_modified_at":"2026-10-21T21:45:39.027Z","fetched_at":"2026-10-23T18:42:43.628194Z","product":"coder","vendor":"coder","versions":[{"version":"2.35.0","status":"affected","versionType":"semver","lessThan":"2.35.4"},{"version":"2.35.4","status":"unaffected","versionType":"semver"}],"defaultStatus":"unaffected"},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-111927","source_modified_at":"2026-10-21T21:45:39.027Z","fetched_at":"2026-10-23T18:42:43.628194Z","product":"coder","vendor":"coder","versions":[{"version":"2.34.0","status":"affected","versionType":"semver","lessThan":"2.34.8"},{"version":"2.34.8","status":"unaffected","versionType":"semver"}],"defaultStatus":"unaffected"},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-111927","source_modified_at":"2026-10-21T21:45:39.027Z","fetched_at":"2026-10-23T18:42:43.628194Z","product":"coder","vendor":"coder","versions":[{"version":"2.33.0","status":"affected","versionType":"semver","lessThan":"2.33.12"},{"version":"2.33.12","status":"unaffected","versionType":"semver"}],"defaultStatus":"unaffected"},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-111927","source_modified_at":"2026-10-21T21:45:39.027Z","fetched_at":"2026-10-23T18:42:43.628194Z","product":"coder","vendor":"coder","versions":[{"version":"0","status":"affected","versionType":"semver","lessThan":"2.29.20"},{"version":"2.29.20","status":"unaffected","versionType":"semver"}],"defaultStatus":"unaffected"}],"fixed_versions":[{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-111927","source_modified_at":"2026-10-21T21:45:39.027Z","fetched_at":"2026-10-23T18:42:43.628194Z","package":{"name":"coder","ecosystem":null},"version":"2.35.4","basis":"first unaffected version stated in the CVE record"},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-111927","source_modified_at":"2026-10-21T21:45:39.027Z","fetched_at":"2026-10-23T18:42:43.628194Z","package":{"name":"coder","ecosystem":null},"version":"2.34.8","basis":"first unaffected version stated in the CVE record"},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-111927","source_modified_at":"2026-10-21T21:45:39.027Z","fetched_at":"2026-10-23T18:42:43.628194Z","package":{"name":"coder","ecosystem":null},"version":"2.33.12","basis":"first unaffected version stated in the CVE record"},{"source":"CVE List","source_url":"https://www.cve.org/CVERecord?id=CVE-2026-111927","source_modified_at":"2026-10-21T21:45:39.027Z","fetched_at":"2026-10-23T18:42:43.628194Z","package":{"name":"coder","ecosystem":null},"version":"2.29.20","basis":"first unaffected version stated in the CVE record"}],"cvss":8.7,"severity":"High","kev":{"listed":false},"epss":{"probability":0.00205,"percentile":0.09972,"score_date":"2026-10-23"},"published_at":"2026-10-17T18:46:39.347Z","modified_at":"2026-10-21T21:45:39.027Z","provenance":[{"source":"CVE List","url":"https://www.cve.org/CVERecord?id=CVE-2026-111927","fetched_at":"2026-10-23T18:42:43.628194Z","source_modified_at":"2026-10-21T21:45:39.027Z"},{"source":"EPSS","url":"https://api.first.org/data/v1/epss?cve=CVE-2026-111927","fetched_at":"2026-10-23T18:42:43.628194Z","source_modified_at":"2026-10-23"}],"sources":["CVE List","EPSS"],"references":[{"source":"CVE List","url":"https://github.com/coder/coder/security/advisories/GHSA-h58h-qvv5-xvwg","tags":["vendor-advisory"]},{"source":"CVE List","url":"https://www.vulncheck.com/advisories/coder-before-2.35.4-credential-theft-via-workspace-proxy-hostname-prefix-match","tags":["third-party-advisory"]}],"locations":[],"motoko_assessment":{"status":"requires_architecture_review","automatic_remediation":false},"cve_state":"PUBLISHED","cvss_source":"CVE List","ssvc":{"exploitation":"none","automatable":"no","technical_impact":"total","assessed_at":"2026-10-21T21:45:28.936667Z"},"classification":{"method":"product-first software-layer rules","rules_version":"2.1","matched_on":null,"confidence":"unknown","reviewed":false},"change_timestamp":"2026-10-21T21:45:39.027Z","content_hash":"c8a09378934c7862ad2d2c56ad814f7f1cb27fa406d1758b499fa26a7135b95c"}}