{"id":"CVE-2026-123534","published":"2026-11-08T02:16:43.727","lastModified":"2026-11-09T14:17:10.353","description":"Tornado before 6.6 contains a path traversal vulnerability in RequestHandler.static_url() and get_version() that allows attackers to hash files outside static_path using ../ sequences. Attackers controlling input passed to static_url() can obtain SHA-512 hashes of readable files to confirm their existence, or reference /dev/zero to block the event loop indefinitely.","cvssScore":6.5,"cvssSeverity":"MEDIUM","cvssVector":"CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:H","cwes":["CWE-22"],"vendors":[],"products":[],"references":[{"url":"https://github.com/tornadoweb/tornado/security/advisories/GHSA-v8g8-cp5j-42fg","tags":[]},{"url":"https://www.vulncheck.com/advisories/tornado-before-6.6-path-traversal-via-static-url-version-hashing","tags":[]}],"exploitRefs":[{"url":"https://github.com/tornadoweb/tornado/security/advisories/GHSA-v8g8-cp5j-42fg","tags":[]}],"hasPoc":true,"ai":null}