SB2024091971 - Insufficient verification of data authenticity in Traefik



SB2024091971 - Insufficient verification of data authenticity in Traefik

Published: September 19, 2024 Updated: May 5, 2026

Security Bulletin ID SB2024091971
CSH Severity
High
Patch available
YES
Number of vulnerabilities 1
Exploitation vector Remote access
Highest impact Code execution

Breakdown by Severity

High 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 1 vulnerability.


1) Insufficient verification of data authenticity (CVE-ID: CVE-2024-45410)

CWE-ID: CWE-345 - Insufficient Verification of Data Authenticity

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Amber


The vulnerability allows a remote attacker to bypass security controls by removing or manipulating trusted forwarded headers.

The vulnerability exists due to insufficient verification of data authenticity in Traefik HTTP header handling when processing HTTP/1.1 requests with hop-by-hop headers declared through the Connection header. A remote attacker can send a specially crafted request to bypass security controls by removing or manipulating trusted forwarded headers.

Some backend frameworks may treat underscore and hyphen variants of forwarded header names equivalently, which can allow attacker-supplied replacement values to be used. Client certificate-related forwarded headers are also affected when client certificate authentication is enabled.


Remediation

Install update from vendor's website.