Description
Traefik is an HTTP reverse proxy and load balancer. Prior to 3.6.10, A tenant with write access to an HTTPRoute resource can inject backtick-delimited rule tokens into Traefik's router rule language via unsanitized header or query parameter match values. In shared gateway deployments, this can bypass listener hostname constraints and redirect traffic for victim hostnames to attacker-controlled backends. This vulnerability is fixed in 3.6.10.
References (2)
Core 2
Core References
Vendor Advisory x_refsource_confirm
https://github.com/traefik/traefik/security/advisories/GHSA-8q2w-wr49-whqj
Release Notes x_refsource_misc
https://github.com/traefik/traefik/releases/tag/v3.6.10
Scores
CVSS v3
6.5
EPSS
0.0028
EPSS Percentile
19.2%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
CISA SSVC
Vulnrichment
Exploitation
none
Automatable
no
Technical Impact
partial
Details
CWE
CWE-74
Status
published
Products (3)
traefik/traefik
< 3.6.10
traefik/traefik
0 (2 CPE variants)Go
traefik/traefik
0 - 3.6.10Go
Published
Mar 11, 2026
Tracked Since
Mar 11, 2026