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Version: v1.1.x

CVE-2026-41181

CVE Details

Visit the official vulnerability details page for CVE-2026-41181 to learn more.

Initial Publication

05/15/2026

Last Update

05/19/2026

Third Party Dependency

github.com/traefik/traefik/v3

NIST CVE Summary

Traefik is an HTTP reverse proxy and load balancer. Prior to 2.11.44, 3.6.15, and 3.7.0-rc.3, there is an information disclosure vulnerability in Traefik's errors (custom error pages) middleware. When the backend returns a response matching the configured status range, the middleware forwards the original request's complete header set, including Authorization, Cookie, and other authentication material, to the separate error page service rather than only the minimal context needed to render the error page. This behavior is undocumented: the documentation states only that Host is forwarded by default, so operators are not warned that sensitive credentials are shared across service boundaries. Deployments using the errors middleware with a distinct error page service may inadvertently expose end-user credentials to infrastructure that was not intended to receive them. This vulnerability is fixed in 2.11.44, 3.6.15, and 3.7.0-rc.3.

CVE Severity

5.8

Our Official Summary

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

Status

Analyzed

Affected Products & Versions

VersionPaletteAIPaletteAI VerteX
1.1.3⚠️ Impacted⚠️ Impacted

Revision History

No revisions available.