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.
Advisories
No advisories yet.
Fixes
Solution
No solution given by the vendor.
Workaround
No workaround given by the vendor.
References
History
Tue, 15 Sep 2026 15:30:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| 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. | |
| Title | Tornado before 6.5.7 Credential Leak via Handle Reuse | |
| First Time appeared |
Tornadoweb
Tornadoweb tornado |
|
| Weaknesses | CWE-200 | |
| CPEs | cpe:2.3:a:tornadoweb:tornado:*:*:*:*:*:*:*:* | |
| Vendors & Products |
Tornadoweb
Tornadoweb tornado |
|
| References |
| |
| Metrics |
cvssV3_1
|
Projects
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Status: PUBLISHED
Assigner: VulnCheck
Published:
Updated: 2026-09-15T15:18:33.089Z
Reserved: 2026-09-15T11:11:13.311Z
Link: CVE-2026-91992
No data.
Status : Received
Published: 2026-09-15T16:17:58.447
Modified: 2026-09-15T16:17:58.447
Link: CVE-2026-91992
No data.
OpenCVE Enrichment
Updated: 2026-09-15T18:45:18Z
Weaknesses