SB2024091971 - Insufficient verification of data authenticity in Traefik
Published: September 19, 2024 Updated: May 5, 2026
Breakdown by Severity
- 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.