CVE-2026-7168 - Vulnerability Details - OpenCVE

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`.

No CVSS v4.0

No CVSS v3.1

No CVSS v3.0

No CVSS v2

This CVE is not in the KEV list.

No EPSS score available.

Key SSVC decision points have not yet been added.

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References

Link	Providers
https://curl.se/docs/CVE-2026-7168.html
https://curl.se/docs/CVE-2026-7168.json
https://hackerone.com/reports/3697719

History

Wed, 13 May 2026 09:15:00 +0000

Type	Values Removed	Values Added
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`.
Title		cross-proxy Digest auth state leak
References		https://curl.se/docs/CVE-2026-7168.html https://curl.se/docs/CVE-2026-7168.json https://hackerone.com/reports/3697719

MITRE

Status: PUBLISHED

Assigner: curl

Published: 2026-05-13T08:29:08.900Z

Updated: 2026-05-13T09:05:54.907Z

Reserved: 2026-04-27T07:37:37.172Z

Link: CVE-2026-7168

Vulnrichment

No data.

NVD

No data.

Redhat

No data.

OpenCVE Enrichment

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