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CVE-2024-39321

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

CVSS 7.5 HIGHEPSS 0.6%CWE-639
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.
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
Affected products
traefik · traefik

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References
https://github.com/traefik/traefik/releases/tag/v2.11.6https://github.com/traefik/traefik/releases/tag/v3.0.4https://github.com/traefik/traefik/releases/tag/v3.1.0-rc3https://github.com/traefik/traefik/security/advisories/GHSA-gxrv-wf35-62w9