CVE-2026-71325

Low

No strong exploitation signal.

CVSS base

4.4 MEDIUM

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N

EPSS — probability of exploitation (30 days)

0.1%

3.6th percentile

CISA KEV

Not listed

Weakness / dates

CWE-653

Published 2026-08-06 · modified 2026-09-16

CVSS breakdown

CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N

Attack Vector	L	Local
Attack Complexity	L	Low
Privileges Required	L	Low
User Interaction	N	None
Scope	U	Unchanged
Confidentiality	L	Low
Integrity	L	Low
Availability	N	None

Timeline

2026-08-06 — Published (NVD)
2026-09-16 — Last modified (NVD)

Description

Traefik is an open-source edge router that makes publishing services a fun and easy experience. Prior to 2.11.54, 3.6.25, and 3.7.10, cross-namespace @kubernetescrd references are not rejected for TraefikService backend references resolved by the service resolver. A tenant confined by RBAC to a single namespace can therefore bind its own router to a TraefikService owned by another namespace and expose or reroute that namespace's backend, defeating the namespace isolation allowCrossNamespace=false is meant to enforce. This issue is fixed in version 2.11.54, 3.6.25, 3.7.10.

Affected

traefik

References

Official: NVD · CVE.org