Shodan
Vulnerabilities
Vulnerable Software

Vulnerability Details CVE-2026-71326

Traefik is an open source HTTP reverse proxy and load balancer. From 3.6.11 until 3.6.25 and 3.7.10, Traefik's BasicAuth middleware in pkg/middlewares/auth/basic_auth.go deduplicates concurrent password checks with a singleflight key built from the delimiter-free concatenation of password and secret, allowing an attacker who has a valid credential and the stored hash to authenticate as an unconfigured username when headerField trusts the forwarded identity. This issue is fixed in 3.6.25 and 3.7.10.
Exploit prediction scoring system (EPSS) score
EPSS Score 0.003
EPSS Ranking 17.7%
CVSS Severity
CVSS v3 Score 3.8
Products affected by CVE-2026-71326
  • Traefik » Traefik » Version: 3.6.11
    cpe:2.3:a:traefik:traefik:3.6.11
  • Traefik » Traefik » Version: 3.6.12
    cpe:2.3:a:traefik:traefik:3.6.12
  • Traefik » Traefik » Version: 3.6.13
    cpe:2.3:a:traefik:traefik:3.6.13
  • Traefik » Traefik » Version: 3.6.14
    cpe:2.3:a:traefik:traefik:3.6.14
  • Traefik » Traefik » Version: 3.6.15
    cpe:2.3:a:traefik:traefik:3.6.15
  • Traefik » Traefik » Version: 3.6.16
    cpe:2.3:a:traefik:traefik:3.6.16
  • Traefik » Traefik » Version: 3.6.17
    cpe:2.3:a:traefik:traefik:3.6.17
  • Traefik » Traefik » Version: 3.6.18
    cpe:2.3:a:traefik:traefik:3.6.18
  • Traefik » Traefik » Version: 3.6.19
    cpe:2.3:a:traefik:traefik:3.6.19
  • Traefik » Traefik » Version: 3.6.20
    cpe:2.3:a:traefik:traefik:3.6.20
  • Traefik » Traefik » Version: 3.6.21
    cpe:2.3:a:traefik:traefik:3.6.21
  • Traefik » Traefik » Version: 3.6.22
    cpe:2.3:a:traefik:traefik:3.6.22
  • Traefik » Traefik » Version: 3.6.23
    cpe:2.3:a:traefik:traefik:3.6.23
  • Traefik » Traefik » Version: 3.6.24
    cpe:2.3:a:traefik:traefik:3.6.24
  • Traefik » Traefik » Version: 3.7.0
    cpe:2.3:a:traefik:traefik:3.7.0
  • Traefik » Traefik » Version: 3.7.1
    cpe:2.3:a:traefik:traefik:3.7.1
  • Traefik » Traefik » Version: 3.7.2
    cpe:2.3:a:traefik:traefik:3.7.2
  • Traefik » Traefik » Version: 3.7.3
    cpe:2.3:a:traefik:traefik:3.7.3
  • Traefik » Traefik » Version: 3.7.4
    cpe:2.3:a:traefik:traefik:3.7.4
  • Traefik » Traefik » Version: 3.7.5
    cpe:2.3:a:traefik:traefik:3.7.5
  • Traefik » Traefik » Version: 3.7.6
    cpe:2.3:a:traefik:traefik:3.7.6
  • Traefik » Traefik » Version: 3.7.7
    cpe:2.3:a:traefik:traefik:3.7.7
  • Traefik » Traefik » Version: 3.7.8
    cpe:2.3:a:traefik:traefik:3.7.8
  • Traefik » Traefik » Version: 3.7.9
    cpe:2.3:a:traefik:traefik:3.7.9


Products
Pricing
Contact Us

Shodan ® - All rights reserved