CVE-2026-86414
UNKNOWN
NVD
CVSS Score
0
Severity
UNKNOWN
Published
Oct 20, 2026
Vendor
unknown
Description
An HTTP proxy can trick libcurl into sending the origin's credentials (Basic password, or a Negotiate/Kerberos ticket) to the proxy itself, by answering the `CONNECT` tunnel request with 401 `WWW-Authenticate:` instead of the expected 407 `Proxy-Authenticate:`.