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CVE-2026-71327

nvd nist
Published: Aug 6, 2026Modified: Sep 16, 2026

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7.6
Vector
CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
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CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:XShow less
Source: security-advisories@github.com (Secondary)

Description

Traefik is an open source HTTP reverse proxy and load balancer. From 3.0.0 until 3.6.25 and 3.7.10, Traefik's Kubernetes Gateway API provider in pkg/provider/kubernetes/gateway/httproute.go, grpcroute.go, tcproute.go, and tlsroute.go builds HTTPRoute, GRPCRoute, TCPRoute, and TLSRoute router and service identities by hyphen-concatenating namespace, route name, Gateway identity, entry point, and rule index, allowing colliding Routes to overwrite another namespace's backend. This issue is fixed in 3.6.25 and 3.7.10.

Affected (2)

Products: Traefik: Traefik
Traefik
1 product
Traefik
Configuration A
2 vulnerable
Vulnerable SoftwareAffected Versions
Traefik
Traefik
3.0.0 ≤ version < 3.6.25
Traefik
3.7.0 ≤ version < 3.7.10

Related CWEs

CWE-694
Use of Multiple Resources with Duplicate Identifier
The product uses multiple resources that can have the same identifier, in a context in which unique identifiers are required.

References (5)

Source: security-advisories@github.com
Patch
Source: security-advisories@github.com
Issue TrackingPatch
Source: security-advisories@github.com
PatchRelease Notes
Source: security-advisories@github.com
PatchRelease Notes
Source: security-advisories@github.com
PatchVendor Advisory

Timeline

No history available yet.