CVE-2026-91992 — Tornado before 6.5.7 Credential Leak via Handle Reuse
Tornado before 6.5.7 contains a credential leak vulnerability in CurlAsyncHTTPClient where pycurl handles are reused across requests without proper state clearing. Attackers can…
Published: 2026-09-15 · CVSS: 8.2 · CVSS 4.0
Tornado before 6.5.7 contains a credential leak vulnerability in CurlAsyncHTTPClient where pycurl handles are reused across requests without proper state clearing. Attackers can obtain sensitive credentials by issuing requests through the same client instance, allowing TLS certificates or proxy authentication to persist across unintended requests.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7