critical

CVE-2026-44774

traefik: Traefik: Privilege escalation via Kubernetes Gateway API provider configuration bypass

Published 15 May 2026Modified 15 Jul 2026CWE 284, 15

In the Trivy database since at least 24 Oct 2026, 07:11 UTCWhen it arrived before that build is not recorded.

Severity by source

NVD9.9CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H

GHSA6.4CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:N/VA:N/SC:L/SI:H/SA:H

Red Hat8.3CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:H

Trivy's own label is CRITICAL. Rated critical by NVD. Rated lower by Red Hat (high), GHSA (medium).

Description

Traefik is an HTTP reverse proxy and load balancer. Prior to 2.11.46, 3.6.17, and 3.7.1, Traefik's Kubernetes Gateway API provider allows a tenant with HTTPRoute creation permissions to expose the REST provider handler, bypassing the providers.rest.insecure=false setting. The Gateway provider accepts any TraefikService backend reference whose name ends with @internal, making it possible to route traffic to rest@internal in addition to the intended api@internal. In shared Gateway deployments where the REST provider is enabled, this allows a low-privileged actor to gain live dynamic configuration write access to Traefik, enabling unauthorized reconfiguration of routers and services. This vulnerability is fixed in 2.11.46, 3.6.17, and 3.7.1.

Affected packages and fixed versions

Source	Package	Fixed in
go::GitHub Security Advisory Go	github.com/traefik/traefik, github.com/traefik/traefik/v2, github.com/traefik/traefik/v3	2.11.46 and 1 more
minimos	traefik-3, traefik-fips-3	3.7.1-r0
rapidfort alpine 3.20	traefik	3.7.1-r0
rapidfort alpine 3.21	traefik	3.7.1-r0
rapidfort alpine 3.22	traefik	3.7.1-r0
rapidfort alpine 3.23	traefik	3.7.1-r0

Show all 9 entries from 6 sources

Source	Package	Fixed in
go::GitHub Security Advisory Go	github.com/traefik/traefik	no fix listed
go::GitHub Security Advisory Go	github.com/traefik/traefik/v2	2.11.46
go::GitHub Security Advisory Go	github.com/traefik/traefik/v3	3.7.1, 3.6.17
minimos	traefik-3	3.7.1-r0
minimos	traefik-fips-3	3.7.1-r0
rapidfort alpine 3.20	traefik	3.7.1-r0
rapidfort alpine 3.21	traefik	3.7.1-r0
rapidfort alpine 3.22	traefik	3.7.1-r0
rapidfort alpine 3.23	traefik	3.7.1-r0

References

All 11 references

What Attestkeep does with this

Inside your cluster, without you opening a spreadsheet.

KnowsThe scanner refreshes its vulnerability database every six hours.

FindsEvery admitted image is rescanned every 24 hours by default (scan.rescanInterval). When Trivy rates this vulnerability critical for the image's package source, it appears in the image's findings by name. Findings without a fix are left out unless includeUnfixed is on.

Tells youA critical_finding event goes to the channels subscribed to it: e-mail, Slack, Teams, a webhook, Jira, GitLab or GitHub.

RefusesWith a policy that blocks critical findings, a pod with this image is refused at admission, a rollback to it included. Pods already running are not evicted.

RecordsEach decision is recorded with the policy that ran and its hash, then sealed under a signed checkpoint.

Try Attestkeep

Read the docs