CVE-2026-7168

Name: CVE-2026-7168
Creator: NVD / NIST
Published: 2026-05-13T13:01:57.2+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 5.3/10EPSS 0.47%

Last modified Jun 17, 2026

CVE-2026-7168 is a medium-severity vulnerability rated 5.3/10 on the CVSS scale. 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`.. EPSS estimates a 0.47% chance of exploitation in the next 30 days.

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`.

Metrics

CVSS 3.1

5.3/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

EPSS Probability

0.47%

37.2th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-294

Affected Software

Vendor	Product	Versions
Haxx	Curl	>= 7.12.0, < 8.20.0

References

https://curl.se/docs/CVE-2026-7168.htmlPatch, Vendor Advisory
https://curl.se/docs/CVE-2026-7168.jsonVendor Advisory
https://hackerone.com/reports/3697719Exploit, Issue Tracking
http://www.openwall.com/lists/oss-security/2026/04/29/14Mailing List, Patch
https://hackerone.com/reports/3697719Exploit, Issue Tracking

Timeline

Published: May 13, 2026
Last Modified: Jun 17, 2026
Status: Analyzed

Frequently Asked Questions

What is CVE-2026-7168?

How severe is CVE-2026-7168?

CVE-2026-7168 has a CVSS score of 5.3/10 (MEDIUM severity). The EPSS model estimates a 0.47% probability of exploitation in the next 30 days.

How do I fix CVE-2026-7168?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2026-7168?

Run a free Strix scan to check your systems for this vulnerability.

Scan your code now

Source: NVD / NIST