CVE•Published 2026-08-06•Modified 2026-09-16•1 article on news•5 live references•NVD data

CVE-2026-71327Traefik · Traefik

Vulnerability data via NVD (ingested)

CVSS v3.1

8.1

HIGH

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

EPSS percentile

Exploit Prediction Scoring System · top 70% of all CVEs

Weaknesses (CWE)

CWE-694Use of Multiple Resources with Duplicate Identifier

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.

Timeline

Published 2026-08-06

Modified 2026-09-16

External references

NVD MITRE Exploit-DB GitHub PoC VulnCheck

Search for exposed instances

Shodan + Censys queries derived from NVD's CPE data. The vuln tag catches assets Shodan has explicitly linked to this CVE; the product / banner fingerprints find exposed instances even when the vuln tag was never applied (which is common).

Shodan · vuln tag0 hosts

vuln:CVE-2026-71327

Hosts Shodan has explicitly fingerprinted as vulnerable.

Shodan · product

product:"Traefik Traefik"

All exposed Traefik Traefik instances — cross-reference with the CVE's affected-version range.

Shodan · banner/body mention

http.html:"Traefik"

HTTP body or banner mentions "Traefik" — catches deploys Shodan didn't identify as a product.

More intel sources (5)

Shodan report

vuln:CVE-2026-71327