EUVD-2026-78664
GHSA-jqv5-7x9v-7j83
Severity by source
CVSS:4.0/AV:N/AC:H/AT:P/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
Primary rating from Vendor (VulnCheck) · only source for this CVE.
CVSS VectorVendor: VulnCheck
Lifecycle Timeline
5DescriptionCVE.org
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.
AnalysisAI
Credential leakage in Tornado's CurlAsyncHTTPClient (all releases through 6.5.6) lets sensitive per-request state — client TLS certificates (SSLCERT/SSLKEY) and proxy basic-auth credentials (PROXYUSERPWD) — persist on pooled pycurl handles and be presented to a different, unintended host on a later request. The flaw affects applications that pass per-request credentials to the curl-backed client and reuse the same client instance across hosts; it is not reachable by an anonymous internet attacker against a default server deployment, and the vendor rates attack complexity as high with attack requirements present. …
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An issue in Docmosis Tornado v.2.9.7 and before allows a remote attacker to execute arbitrary code via a crafted script
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In versions of Tornado prior to 6.5.5, the only limit on the number of parts in `multipart/form-data` is the `max_body_s
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Denial-of-service in Tornado prior to 6.5.8 allows unauthenticated remote attackers to stall the entire server by sendin
Tornado is a Python web framework and asynchronous networking library. Rated high severity (CVSS 7.5), this vulnerabilit
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Open redirect vulnerability in Tornado versions 6.3.1 and earlier allows a remote unauthenticated attacker to redirect a
Cookie attribute injection in Tornado web framework versions before 6.5.5 allows unauthenticated remote attackers to man
CRLF injection vulnerability in the tornado.web.RequestHandler.set_header function in Tornado before 2.2.1 allows remote
Same weakness CWE-200 – Information Exposure
View allSame technique Information Disclosure
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External POC / Exploit Code
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