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.
References (4)
Core 4
Core References
Patch, Vendor Advisory x_refsource_confirm
https://github.com/traefik/traefik/security/advisories/GHSA-gxrv-wf35-62w9
Release Notes x_refsource_misc
https://github.com/traefik/traefik/releases/tag/v2.11.6
Release Notes x_refsource_misc
https://github.com/traefik/traefik/releases/tag/v3.0.4
Release Notes x_refsource_misc
https://github.com/traefik/traefik/releases/tag/v3.1.0-rc3
Scores
CVSS v3
7.5
EPSS
0.0018
EPSS Percentile
38.8%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
no
Technical Impact
partial
Details
CWE
CWE-639
Status
published
Products (4)
traefik/traefik
3.1.0 (3 CPE variants)
traefik/traefik
< 2.11.6
traefik/traefik
0 - 2.11.6Go
traefik/traefik
3.0.0-beta3 - 3.0.4Go
Published
Jul 05, 2024
Tracked Since
Feb 18, 2026