CVE-2026-86414

Published: Ott 20, 2026 Last Modified: Ott 20, 2026
ExploitDB:
Other exploit source:
Google Dorks:

Description

AI Translation Available

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:`.

https://curl.se/docs/CVE-2026-86414.html
https://curl.se/docs/CVE-2026-86414.html
https://curl.se/docs/CVE-2026-86414.json
https://curl.se/docs/CVE-2026-86414.json
https://hackerone.com/reports/3993566
https://hackerone.com/reports/3993566