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CVE-2026-54761 Traefik: Kubernetes Gateway crossProviderNamespaces bypass allows HTTPRoute outside the allowlist to expose internal Traefik services

🗓️ 23 Jun 2026 19:15:38Reported by GitHub_MType 
cvelist
 cvelist
🔗 www.cve.org👁 36 Views

High severity Traefik Kubernetes Gateway bypass exposes internal services via HttpRoute rules.

Related
Affected
Refs
ReporterTitlePublishedViews
Family
attackerkb
CVE-2026-54761
23 Jun 202619:15
attackerkb
alpinelinux
CVE-2026-54761
23 Jun 202619:15
alpinelinux
cgr
CVE-2026-54761 vulnerabilities
2 Jul 202614:17
cgr
circl
CVE-2026-54761
11 Jun 202608:30
circl
cve
CVE-2026-54761
23 Jun 202619:15
cve
githubexploit
Exploit for CVE-2026-54761
19 Jun 202613:29
githubexploit
euvd
EUVD-2026-38577
23 Jun 202619:15
euvd
github
Traefik: Kubernetes Gateway crossProviderNamespaces bypass allows HTTPRoute outside the allowlist to expose internal Traefik services
17 Jun 202614:01
github
nvd
CVE-2026-54761
23 Jun 202620:16
nvd
osv
CGA-HV92-FC8X-GP7X
2 Jul 202612:36
osv
Rows per page
[
  {
    "vendor": "traefik",
    "product": "traefik",
    "versions": [
      {
        "version": "< 3.6.21",
        "status": "affected"
      },
      {
        "version": ">= 3.7.0-ea.1, < 3.7.5",
        "status": "affected"
      }
    ]
  }
]

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