PULSE
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CVE WatchOct 20, 2026

CVE-2026-86414

An HTTP proxy can trick libcurl into sending the origin's credentials (Basic password, or a Negotiate/Kerberos ticket) to the proxy itself,

CVSS

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No CVSS

EPSS

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KEV

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Exploit Today

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0-100

Published: Oct 20, 2026 · Last modified: Oct 20, 2026

EPSS · 30d

Not enough EPSS history yet.

Technical 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:`.

Official references
Related CVEs

No related CVEs by CWE or product.