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Version: v1.1.x

CVE-2026-41263

CVE Details

Visit the official vulnerability details page for CVE-2026-41263 to learn more.

Initial Publication

04/30/2026

Last Update

05/01/2026

Third Party Dependency

github.com/traefik/traefik/v3

NIST CVE Summary

Traefik is an HTTP reverse proxy and load balancer. Prior to versions 2.11.43, 3.6.14, and 3.7.0-rc.2, there is a timing side-channel vulnerability in Traefik's BasicAuth middleware that allows an attacker to enumerate valid usernames through response-time differences. The variable intended to hold a constant-time fallback secret always resolves to an empty string, causing the constant-time comparison to short-circuit in microseconds rather than performing a full bcrypt evaluation. This restores the original timing oracle and makes it possible to distinguish existing users from non-existing ones by measuring authentication response times. This issue has been patched in versions 2.11.43, 3.6.14, and 3.7.0-rc.2.

CVE Severity

3.7

Our Official Summary

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

Status

Analyzed

Affected Products & Versions

VersionPaletteAIPaletteAI VerteX
1.1.0⚠️ Impacted⚠️ Impacted

Revision History

No revisions available.