Dashboard / CVE-2026-114640

CVE-2026-114640

HIGH
MEDIUM Priority: 0.01 BB Relevance: 74/100
Published: 2026-10-22 Modified: 2026-10-28 First seen: 2026-10-29 Status: active

Attack Surface

Network Low Complexity No Auth No Interaction

CVSS Vector Breakdown

AV: Network
AC: Low
PR: None
UI: None
AT: Present
VC: None
VI: None
VA: None

Description

Traefik from v3.7.0 before v3.7.14 contains an authentication bypass vulnerability in its Kubernetes Ingress-NGINX provider that forwards client-supplied Ssl-Client-* headers on the plaintext HTTP router. When ssl-redirect is disabled alongside auth-tls-pass-certificate-to-upstream, unauthenticated attackers can send Ssl-Client-Verify: SUCCESS with a chosen certificate subject and issuer to impersonate mTLS identities.

Weakness Classification (1)

Affected Software (4)

VendorProductVersion
traefik traefik 3.7.0 – 3.7.14
traefik traefik 3.7.0 < 3.7.14
traefik traefik 3.7.0 < 3.7.14
traefik traefik 3.7.0 – 3.7.14

References & Advisories (2)

Bug Bounty Relevance

74 / 100
✓ Network accessible
✓ No authentication
✓ Low complexity
✓ No user interaction

CVSS Score

7.0 / 10.0 v4.0
CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:N/VA:N/SC:H/SI:H/SA:N

EPSS — Exploitation Probability

0.19%
Raw Score 0.001920
Percentile 8.8%
Date 2026-10-29

EPSS Trend

2026-10-29
0.00192
2026-10-28
0.00192

Intelligence Sources

mitre ref →
nvd ref →

External Links