CVE-2026-65602
- Source
- https://cve.org/CVERecord?id=CVE-2026-65602
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-65602.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2026-65602
- Aliases
- Downstream
- Published
- 2026-07-22T11:21:48.127Z
- Modified
- 2026-08-18T15:11:02.023074981Z
- Severity
-
- 5.3 (Medium) CVSS_V4 - 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 CVSS Calculator
- Summary
- Traefik before 3.6.23 IngressRouteTCP ServersTransport Namespace Bypass
- Details
-
Traefik 3.6.0 through 3.6.22 and 3.7.0 through 3.7.6 fail to enforce the crossProviderNamespaces allowlist for IngressRouteTCP service serversTransport references (the allowlist was only enforced for HTTP serversTransport references). A low-privileged Kubernetes user in a namespace not listed in crossProviderNamespaces can set serversTransport: foo@file on an IngressRouteTCP service, causing Traefik to accept the forbidden cross-provider reference and use a file-provider TCPServersTransport — including privileged backend mTLS client certificates, SPIFFE identity, or PROXY-protocol settings. This is fixed in 3.6.23 and 3.7.7.
- Database specific
{ "cna_assigner": "VulnCheck", "cwe_ids": [ "CWE-863" ], "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/65xxx/CVE-2026-65602.json" }- References
-
- https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/65xxx/CVE-2026-65602.json
- https://github.com/traefik/traefik/security/advisories/GHSA-42cj-m3vj-89wv
- https://nvd.nist.gov/vuln/detail/CVE-2026-65602
- https://www.vulncheck.com/advisories/traefik-before-ingressroutetcp-serverstransport-namespace-bypass
- https://github.com/traefik/traefik/commit/26c96a3935cafb473f4a5bae1886560d9aa4e4f0
Affected packages
Git / github.com/traefik/traefik
Affected ranges
- Type
- GIT
- Repo
- https://github.com/traefik/traefik
- Events
- Database specific
-
Show details
{ "extracted_events": [ { "introduced": "3.6.0" }, { "fixed": "3.6.23" }, { "introduced": "3.7.0" }, { "fixed": "3.7.7" } ], "source": [ "CPE_RANGE", "REFERENCES" ], "cpe": "cpe:2.3:a:traefik:traefik:*:*:*:*:*:*:*:*" }