CVE-2026-29054

Published: Mar 05, 2026 Last Modified: Mar 06, 2026
ExploitDB:
Other exploit source:
Google Dorks:
HIGH 7,5
Source: [email protected]
Attack Vector: network
Attack Complexity: low
Privileges Required: none
User Interaction: none
Scope: unchanged
Confidentiality: none
Integrity: high
Availability: none

Description

AI Translation Available

Traefik is an HTTP reverse proxy and load balancer. From version 2.11.9 to 2.11.37 and from version 3.1.3 to 3.6.8, there is a potential vulnerability in Traefik managing the Connection header with X-Forwarded headers. When Traefik processes HTTP/1.1 requests, the protection put in place to prevent the removal of Traefik-managed X-Forwarded headers (such as X-Real-Ip, X-Forwarded-Host, X-Forwarded-Port, etc.) via the Connection header does not handle case sensitivity correctly. The Connection tokens are compared case-sensitively against the protected header names, but the actual header deletion operates case-insensitively. As a result, a remote unauthenticated client can use lowercase Connection tokens (e.g. Connection: x-real-ip) to bypass the protection and trigger the removal of Traefik-managed forwarded identity headers. This issue has been patched in versions 2.11.38 and 3.6.9.

EPSS (Exploit Prediction Scoring System)

Trend Analysis

EPSS (Exploit Prediction Scoring System)

Prevede la probabilità di sfruttamento basata su intelligence sulle minacce e sulle caratteristiche della vulnerabilità.

EPSS Score
0,0001
Percentile
0,0th
Updated

EPSS Score Trend (Last 10 Days)

178

Improper Handling of Case Sensitivity

Incomplete
Abstraction: Base Structure: Simple
Common Consequences
Security Scopes Affected:
Access Control
Potential Impacts:
Bypass Protection Mechanism
Applicable Platforms
Operating Systems: Windows, macOS
View CWE Details
Application

Traefik by Traefik

Product Information
Vendor Traefik
Product Traefik
Version Range Affected
From 3.1.3 (inclusive)
To 3.6.9 (exclusive)
cpe:2.3:a:traefik:traefik:*:*:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
Application

Traefik by Traefik

Product Information
Vendor Traefik
Product Traefik
Version Range Affected
From 2.11.9 (inclusive)
To 2.11.38 (exclusive)
cpe:2.3:a:traefik:traefik:*:*:*:*:*:*:*:*
Common Platform Enumeration - Standardized vulnerability identification
https://github.com/traefik/traefik/releases/tag/v2.11.38
https://github.com/traefik/traefik/releases/tag/v2.11.38
https://github.com/traefik/traefik/releases/tag/v3.6.9
https://github.com/traefik/traefik/releases/tag/v3.6.9
https://github.com/traefik/traefik/security/advisories/GHSA…
https://github.com/traefik/traefik/security/advisories/GHSA-92mv-8f8w-wq52