CVE-2026-7168

0.0

cross-proxy Digest auth state leak

Overview

Overview

Description

Successfully using libcurl to do a transfer over a specific HTTP proxy (`proxyA`) with **Digest** authentication and then changing the proxy host to a second one (`proxyB`) for a second transfer, reusing the same handle, makes libcurl wrongly pass on the `Proxy-Authorization:` header field meant for `proxyA`, to `proxyB`.

Details

INFO

Published Date :

May 13, 2026, 8:29 a.m.

Last Modified :

May 13, 2026, 9:05 a.m.

Remotely Exploit :

No

Source :

curl

Impact

Affected Products

The following products are affected by CVE-2026-7168 vulnerability. Even if cvefeed.io is aware of the exact versions of the products that are affected, the information is not represented in the table below.

ID	Vendor	Product	Action
1	Haxx	curl

: Total Affected Vendor : 1 | Products : 1

Solution

Reset Proxy-Authorization header when changing proxy servers to prevent credential leakage.

Clear Proxy-Authorization header before changing proxy host.
Re-authenticate with the new proxy server.
Ensure proper header management for proxy authentication.
Update libcurl to a version with this fix.

We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).

Results are limited to the first 15 repositories due to potential performance issues.

The following list is the news that have been mention CVE-2026-7168 vulnerability anywhere in the article.

Results are limited to the first 20 news articles due to potential performance issues.

EPSS is a daily estimate of the probability of exploitation activity being observed over the next 30 days. Following chart shows the EPSS score history of the vulnerability.

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