PT-2026-139815
CVE-2026-123534
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Published
2026-11-08
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Updated
2026-11-08
Description by
CVSS 3.1
6.5
MediumMetricsAV:N/AC:H/PR:N/UI:N/S:U/C:L/I:N/A:H
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.
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