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Version: v1.1.x

CVE-2026-48020

CVE Details

Visit the official vulnerability details page for CVE-2026-48020 to learn more.

Initial Publication

06/23/2026

Last Update

06/30/2026

Third Party Dependency

github.com/traefik/traefik/v3

NIST CVE Summary

Traefik is an HTTP reverse proxy and load balancer. Prior to 2.11.48, 3.6.19, and 3.7.3, there is a high severity vulnerability in Traefik's StripPrefix middleware that allows an unauthenticated attacker to bypass route-level authentication and authorization. When a public router matches on a PathPrefix rule and applies the StripPrefix middleware, a request path containing .. or its percent-encoded form %2e%2e can match the public route at routing time and then, after the prefix is stripped and the path is normalized, resolve to a path served by a separate, authenticated router. As a result, an attacker can reach protected backend paths — such as admin or internal configuration endpoints — without satisfying the authentication middleware attached to the protected router. This vulnerability is fixed in 2.11.48, 3.6.19, and 3.7.3.

CVE Severity

9.1

Our Official Summary

Investigation is ongoing to determine how this vulnerability affects our products.

Status

Modified

Affected Products & Versions

VersionPaletteAIPaletteAI VerteX
1.1.8⚠️ Impacted⚠️ Impacted

Revision History

No revisions available.