Vulnerability Description
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.
CVSS Score
MEDIUM
Related Weaknesses (CWE)
References
- https://github.com/tornadoweb/tornado/security/advisories/GHSA-pw6j-qg29-8w7f
- https://www.vulncheck.com/advisories/tornado-before-6.5.7-credential-leak-via-ha
- https://github.com/tornadoweb/tornado/security/advisories/GHSA-pw6j-qg29-8w7f
FAQ
What is CVE-2026-91992?
CVE-2026-91992 is a vulnerability with a CVSS score of 5.9 (MEDIUM). 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 crede...
How severe is CVE-2026-91992?
CVE-2026-91992 has been rated MEDIUM with a CVSS base score of 5.9/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-91992?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.