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CVE-2024-39321

7.5 · HIGH

Traefik is an HTTP reverse proxy and load balancer.

Published Jul 5, 2024CWE-639EPSS 0.59%

Overview

CVE-2024-39321 is a high-severity vulnerability. It was published on July 5, 2024 and has a CVSS 3.1 base score of 7.5 (HIGH).

This vulnerability has a CVSS 3.1 base score of 7.5, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

Technical description

Traefik is an HTTP reverse proxy and load balancer. Versions prior to 2.11.6, 3.0.4, and 3.1.0-rc3 have a vulnerability that allows bypassing IP allow-lists via HTTP/3 early data requests in QUIC 0-RTT handshakes sent with spoofed IP addresses. Versions 2.11.6, 3.0.4, and 3.1.0-rc3 contain a patch for this issue. No known workarounds are available.

Remediation

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

References

GitHubgithub.com/traefik/traefik/releases/tag/v2.11.6GitHubgithub.com/traefik/traefik/releases/tag/v3.0.4GitHubgithub.com/traefik/traefik/releases/tag/v3.1.0-rc3GitHubgithub.com/traefik/traefik/security/advisories/GHSA-gxrv-wf35-62w9GitHubgithub.com/traefik/traefik/releases/tag/v2.11.6GitHubgithub.com/traefik/traefik/releases/tag/v3.0.4GitHubgithub.com/traefik/traefik/releases/tag/v3.1.0-rc3GitHubgithub.com/traefik/traefik/security/advisories/GHSA-gxrv-wf35-62w9

How CyberStrike helps

Frequently asked questions

What is CVE-2024-39321?

CVE-2024-39321 is a high-severity vulnerability. It was published on July 5, 2024 and has a CVSS 3.1 base score of 7.5 (HIGH).

How severe is CVE-2024-39321?

This vulnerability has a CVSS 3.1 base score of 7.5, rated HIGH. It can be exploited remotely over the network. No authentication or special privileges are required for exploitation.

How do I fix or remediate CVE-2024-39321?

Check the references section for vendor advisories, patches, and mitigation guidance. If immediate patching is not possible, review the CVSS vector to understand the attack surface and apply compensating controls such as network segmentation or access restrictions.

How can CyberStrike help with CVE-2024-39321?

CyberStrike is an open-source, AI-augmented pentesting engine. Rather than flag a version number, it tests whether an issue like CVE-2024-39321 is actually reachable in your own applications and APIs, then verifies each finding before reporting it. That tells you if the weakness is a real, exploitable risk in your environment or a false positive you can safely deprioritize.

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