CVE-2026-103263
mediumTornado before 6.5.9 contains a path traversal vulnerability in StaticFileHandler that follows symbolic links inside the static root without confirming the res…
Tornado before 6.5.9 contains a path traversal vulnerability in StaticFileHandler that follows symbolic links inside the static root without confirming the resolved target stays within it. When a symlink pointing outside the static directory exists inside it, unauthenticated attackers can request it to read files such as configuration files, private keys, and application secrets accessible to the process user.
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N Affected products
Not reported by the source (unknown — not "none").
Weakness classification (CWE)
Source: NVD / CISA. “NVD-CWE-Other” and “NVD-CWE-noinfo” mean NVD could not assign a specific weakness.
Mitigation & advisories
No vendor advisory or patch reference tagged by NVD. Check the references below.
References
- https://github.com/tornadoweb/tornado/commit/437ab5f76565403b3403438d2e555d11f8128d32 disclosure@vulncheck.com
- https://github.com/tornadoweb/tornado/security/advisories/GHSA-c2m8-h5v5-343r disclosure@vulncheck.com
- https://www.vulncheck.com/advisories/tornado-before-6.5.9-staticfilehandler-path-traversal... disclosure@vulncheck.com
- https://github.com/tornadoweb/tornado/security/advisories/GHSA-c2m8-h5v5-343r 134c704f-9b21-4f2e-91b3-4a467353bcc0