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CVE-2026-71326

Published Aug 6, 2026 CWE-287 EPSS 0.36% (28th pctl)

Overview

CVE-2026-71326 is a known-severity vulnerability. It was published on August 6, 2026.

Technical Description

Traefik is an open source HTTP reverse proxy and load balancer. From 3.6.11 until 3.6.25 and 3.7.10, Traefik's BasicAuth middleware in pkg/middlewares/auth/basic_auth.go deduplicates concurrent password checks with a singleflight key built from the delimiter-free concatenation of password and secret, allowing an attacker who has a valid credential and the stored hash to authenticate as an unconfigured username when headerField trusts the forwarded identity. This issue is fixed in 3.6.25 and 3.7.10.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

GitHub github.com/traefik/traefik/commit/b5ace8eb5d6779980567f5e75efd2d9e08b7e350 GitHub github.com/traefik/traefik/pull/13572 GitHub github.com/traefik/traefik/releases/tag/v3.6.25 GitHub github.com/traefik/traefik/releases/tag/v3.7.10 GitHub github.com/traefik/traefik/security/advisories/GHSA-6765-c87h-8mrf

Frequently Asked Questions

What is CVE-2026-71326?

CVE-2026-71326 is a known-severity vulnerability. It was published on August 6, 2026.

How severe is CVE-2026-71326?

CVSS score information is not yet available for this vulnerability. Check back as the CVE record is updated by NVD analysts.

How do I fix or remediate CVE-2026-71326?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2026-71326?

CyberStrike's AI-powered security agents can automatically detect CVE-2026-71326 across your infrastructure using autonomous pentesting, DAST scanning, and HackBrowser. The platform continuously monitors for known vulnerabilities and provides actionable remediation guidance prioritized by real-world exploitability.

How CyberStrike Helps

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HackBrowser

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