SEPTEMBER 14, 2026
Live Feed
Back to database
Case File

CVE-2026-85595

CRITICAL · CVSS 9.3 EPSS 0.41% Public Exploit

Source: NVD + CISA KEV + EPSS · Published 2026-09-04 · Last synced 2026-09-14

CyberRota Analysis

AI-Generated

Traefik versions prior to v2.11.55 are vulnerable to an authentication bypass in the digestAuth middleware, allowing attackers to exploit the flaw by receiving an empty secret for unknown usernames. This enables unauthorized access to any route protected by digestAuth, as attackers can generate valid digest responses using arbitrary credentials. Organizations utilizing affected Traefik versions should prioritize immediate updates to mitigate this critical security risk.

Public Exploit Signal

A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.

GitHub PoC Links

Note: these links are listed for security research and verification purposes only.

CVE
CVE-2026-85595
Severity
CRITICAL
CVSS
9.3
EPSS
0.41%

Original NVD Description

Traefik versions before v2.11.55 and versions v3.0.0 through v3.7.10 contain an authentication bypass vulnerability in the digestAuth middleware where unknown usernames receive an empty secret instead of rejection. Attackers can compute a valid digest response using the empty secret and arbitrary credentials to bypass authentication on any digestAuth-protected route without a valid username or password.