CVE-2026-123534
MEDIUM
NVD
CVSS Score
6.5
Severity
MEDIUM
Published
Nov 08, 2026
Vendor
unknown
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.