CVE-2026-103263 — Tornado before 6.5.9 StaticFileHandler Path Traversal via Symlink
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…
Published: 2026-10-01 · CVSS: 8.2 · CVSS 4.0
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.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7