What’s Vulnerable › Vulnerabilities

CVE-2024-52003: X-Forwarded-Prefix Header still allows for Open Redirect in traefik

• Severity: medium (CVSS 6.1 v3.1)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.4% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2024-11-29 · updated 2026-06-17
• Weakness: CWE-601

Description

Traefik (pronounced traffic) is an HTTP reverse proxy and load balancer. There is a vulnerability in Traefik that allows the client to provide the X-Forwarded-Prefix header from an untrusted source. This issue has been addressed in versions 2.11.14 and 3.2.1. Users are advised to upgrade. There are no known workarounds for this vulnerability.

Affected products

• Traefik: before 2.11.14; from 3.0.0 before 3.2.1 — fixed in 2.11.14, 3.2.1

How to fix

Upgrade to a fixed version: Traefik 2.11.14, 3.2.1. Check the vendor advisory for mitigations.

References

• https://github.com/traefik/traefik/pull/11253
• https://github.com/traefik/traefik/releases/tag/v2.11.14
• https://github.com/traefik/traefik/releases/tag/v3.2.1
• https://github.com/traefik/traefik/security/advisories/GHSA-h924-8g65-j9wg

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