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CVE-2026-86414

unscored Awaiting Analysis
NVD · CVE.org

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:`.

Fix

Vendor advisories in the News 1

Every line above is quoted from NVD, CISA, Microsoft, the vendor's own advisory or DISA; nothing is generated.

Change history 3

  1. StatusPublished → Awaiting AnalysisNVD modified 2026-10-22 16:57
  2. StatusReceived → PublishedNVD modified 2026-10-20 20:07
  3. First seenunscoredNVD modified 2026-10-20 21:17

Affected (CPE criteria) 0

NVD has not attached CPE configurations yet.

References 3