Upstream information

CVE-2026-32595 at MITRE

Description

Traefik is an HTTP reverse proxy and load balancer. Versions 2.11.40 and below, 3.0.0-beta1 through 3.6.11, and 3.7.0-ea.1 comtain BasicAuth middleware that allows username enumeration via a timing attack. When a submitted username exists, the middleware performs a bcrypt password comparison taking ~166ms. When the username does not exist, the response returns immediately in ~0.6ms. This ~298x timing difference is observable over the network and allows an unauthenticated attacker to reliably distinguish valid from invalid usernames. This issue is patched in versions 2.11.41, 3.6.11 and 3.7.0-ea.2.

SUSE information

Overall state of this security issue: Does not affect SUSE products

SUSE Bugzilla entry: 1260016 [NEW]

SUSE Security Advisories:

List of released packages

Product(s) Fixed package version(s) References
openSUSE Tumbleweed
  • traefik >= 3.6.12-1.1
  • traefik2 >= 2.11.42-1.1
 Patchnames:
openSUSE-Tumbleweed-2026-10444
openSUSE-Tumbleweed-2026-10445

SUSE Timeline for this CVE

CVE page created: Fri Mar 20 14:00:14 2026
CVE page last modified: Fri May 8 12:08:53 2026