CVE-2024-39321

Traefik vulnerable to bypassing IP allow-lists via HTTP/3 early data requests in QUIC 0-RTT handshakes

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.

Category

7.5
CVSS
Severity: High
CVSS 3.1 •
EPSS 0.11%
Affected: traefik traefik
Published at:
Updated at:

References

Link Tags
https://github.com/traefik/traefik/security/advisories/GHSA-gxrv-wf35-62w9
https://github.com/traefik/traefik/releases/tag/v2.11.6
https://github.com/traefik/traefik/releases/tag/v3.0.4
https://github.com/traefik/traefik/releases/tag/v3.1.0-rc3

Frequently Asked Questions

What is the severity of CVE-2024-39321?
CVE-2024-39321 has been scored as a high severity vulnerability.
How to fix CVE-2024-39321?
To fix CVE-2024-39321, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2024-39321 being actively exploited in the wild?
As for now, there are no information to confirm that CVE-2024-39321 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2024-39321?
CVE-2024-39321 affects traefik traefik.
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