CVE-2026-65601

原始描述

Traefik versions 3.7.0 through 3.7.6 contain a namespace confusion vulnerability in the Kubernetes Gateway API provider. When resolving HTTPRoute.spec.rules[].backendRefs[].filters[].extensionRef, Traefik used the backend Service namespace instead of the HTTPRoute namespace. A low-privileged route author holding a ReferenceGrant for a cross-namespace Service could therefore bind a Traefik Middleware from the backend namespace without a separate grant for that middleware, potentially injecting trusted reverse-proxy identity headers into downstream requests. The issue is fixed in version 3.7.7.

受影响的软件

• Traefik *≥ 3.7.0 < 3.7.7 修复版本: 3.7.7 仓库或软件包匹配

详情

发布日期

2026-07-22

最后修改

2026-10-09

CVSS 向量

CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:N/VI:N/VA:N/SC:H/SI:H/SA:N

CWE

CWE-863

参考资料

• cve.org/CVE-2026-65601
• nvd.nist.gov/vuln/detail/CVE-2026-65601
• github.com/traefik/traefik/security/advisories/GHSA-qq9q-x9w4-chhj
• github.com/traefik/traefik/commit/26c96a3935cafb473f4a5bae1886560d9aa4e4f0
• www.vulncheck.com/advisories/traefik-before-namespace-confusion-via-httproute-extensionref