Answer in brief
CVE-2026-71327 records a High severity (CVSS 7.6) vulnerability in Traefik: Gateway API route identity collision allows cross-namespace backend hijacking. The current sources do not mark it as known exploited. The current feed maps traefik/traefik (generic), github.com/traefik/traefik/v3 (go), github.com/traefik/traefik/v3 (go). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
Answer in brief
CVE-2026-71327 records a High severity (CVSS 7.6) vulnerability in Traefik: Gateway API route identity collision allows cross-namespace backend hijacking. The current sources do not mark it as known exploited. The current feed maps traefik/traefik (generic), github.com/traefik/traefik/v3 (go), github.com/traefik/traefik/v3 (go). Check affected ranges and fixed versions before updating.
Analysis pending evidence review
HOL Guard separates source facts from reviewed analysis. See the methodology.
CVSS is 7.6. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps traefik/traefik (generic), github.com/traefik/traefik/v3 (go), github.com/traefik/traefik/v3 (go). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| traefik/traefikgeneric | >= 3.0.0, < 3.6.25 || >= 3.7.0, < 3.7.10 | Not reported |
| github.com/traefik/traefik/v3go | >=3.0.0,<3.6.25 | 3.6.25 |
| github.com/traefik/traefik/v3go | >=3.7.0,<3.7.10 | 3.7.10 |
Published upstream
Aug 6, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 6, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Aug 6, 2026
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.
Quoted source text, attributed separately from HOL analysis.
CVSS is 7.6. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.
Analysis status
Analysis pending evidence review
Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.
The current feed maps traefik/traefik (generic), github.com/traefik/traefik/v3 (go), github.com/traefik/traefik/v3 (go). Check affected ranges and fixed versions before updating.
| Package | Affected range | Fixed version |
|---|---|---|
| traefik/traefikgeneric | >= 3.0.0, < 3.6.25 || >= 3.7.0, < 3.7.10 | Not reported |
| github.com/traefik/traefik/v3go | >=3.0.0,<3.6.25 | 3.6.25 |
| github.com/traefik/traefik/v3go | >=3.7.0,<3.7.10 | 3.7.10 |
Published upstream
Aug 6, 2026
Evidence: source:cvelist:source_dates:source-dates:recordSource modified
Aug 6, 2026
Evidence: source:cvelist:source_dates:source-dates:recordFirst seen by HOL
Aug 6, 2026
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.
Quoted source text, attributed separately from HOL analysis.