{"action":"No fix published. Pin and monitor.","affected":[{"introduced":"0"}],"component":"github.com/coder/coder","cve_ids":["CVE-2026-55438"],"ecosystem":"Go","epss":0.00222,"exploited":false,"fixed_versions":[],"ghsa_id":"GHSA-5wg6-jmq2-53pw","id":"tcs_01M5KGQQRXW3SJDCS9ZP99BJDD","modified_at":"2026-07-07T20:30:16.373554927Z","published_at":"2026-07-07T16:41:46Z","references":["https://osv.dev/vulnerability/GO-2026-5918","https://github.com/coder/coder/security/advisories/GHSA-5wg6-jmq2-53pw","https://github.com/coder/coder/pull/26085","https://github.com/coder/coder/pull/26086"],"severity":{"label":"unknown"},"sources":[{"source":"osv","source_id":"GO-2026-5918","url":"https://osv.dev/vulnerability/GO-2026-5918"}],"summary":"Coder's workspace app CORS origin check can be bypassed via UUID-based subdomain spoofing in github.com/coder/coder"}