{"id":"CVE-2026-109823","title":"Host filesystem path disclosure via DNS rebinding","summary":"An attacker can read the name of filesystem paths of your application present via Tidewave configuration via /tidewave/connect or via the rendered toolbar.\n\nNeither response checks the Host header. A web page that rebinds its own domain …","severity":"low","cvss":2.3,"cvssVector":"CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:P/VC:L/VI:N/VA:N/SC:N/SI:N/SA:N","cvssSource":"cna","cwe":["CWE-497"],"vendor":"tidewave-ai","product":"tidewave","affected":["tidewave >= 0.8.0 < 0.9.2","tidewave-ai/tidewave_phoenix >= f78352b56d19cd4ae49999aa385011cef73e8b93 < 80159536f752dc4d34797934d1516f29cea12b50"],"published":"2026-10-27","updated":"2026-10-27","sourceUpdated":"2026-10-27T15:47:36.862Z","source":"CVEORG","sourceUrl":"https://www.cve.org/CVERecord?id=CVE-2026-109823","references":[{"url":"https://cna.erlef.org/cves/CVE-2026-109823.html","label":"EEF CNA record for CVE-2026-109823"},{"url":"https://osv.dev/vulnerability/EEF-CVE-2026-109823","label":"OSV record EEF-CVE-2026-109823"},{"url":"https://github.com/tidewave-ai/tidewave_phoenix/commit/f78352b56d19cd4ae49999aa385011cef73e8b93","label":"Introducing commit f78352b in tidewave-ai/tidewave_phoenix"},{"url":"https://github.com/tidewave-ai/tidewave_phoenix/commit/80159536f752dc4d34797934d1516f29cea12b50","label":"Fix commit 8015953 in tidewave-ai/tidewave_phoenix"}],"tags":["cve.org"],"ingestedAt":"2026-10-27T16:11:59.473Z","slug":"CVE-2026-109823","body":"## Overview\n\nAn attacker can read the name of filesystem paths of your application present via Tidewave configuration via /tidewave/connect or via the rendered toolbar.\n\nNeither response checks the Host header. A web page that rebinds its own domain to the loopback address can therefore read the tag with a same-origin request, which carries no Origin header. The paths usually reveal the local username and the project layout.\n\nThis issue affects tidewave: from 0.8.0 before 0.9.2.\n\n## Affected\n\n- `tidewave >= 0.8.0 < 0.9.2`\n- `tidewave-ai/tidewave_phoenix >= f78352b56d19cd4ae49999aa385011cef73e8b93 < 80159536f752dc4d34797934d1516f29cea12b50`\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":13,"depthScoreParts":{"impact":12.6,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}