Routes exposed with an empty TLSOption in traefik
Key facts
- Attack vector
- Network
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Spoofing
- Confidentiality · integrity · availability
- High · High · None
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CNA. Fix status from CNA and GitHub. Impact type from CWE-295.
Summary
Traefik is an open source HTTP reverse proxy and load balancer. In affected versions there is a potential vulnerability in Traefik managing TLS connections. A router configured with a not well-formatted TLSOption is exposed with an empty TLSOption. For instance, a route secured using an mTLS connection set with a wrong CA file is exposed without verifying the client certificates. Users are advised to upgrade to version 2.9.6. Users unable to upgrade should check their logs to detect the error messages and fix your TLS options.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- No
- Technical impact
- Total
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| traefik | traefik | before 2.9.6 | 2.9.6 | Patch available | CNA |
| — | github.com/traefik/traefik/v2 (Go) | before 2.9.6 | 2.9.6 | Patch available | GHSA-468w-8x39-gj5v |
- traefik Vendortraefik Affected before 2.9.6 Fixed in 2.9.6 Patch available CNA
- github.com/traefik/traefik/v2 (Go) Vendor— Affected before 2.9.6 Fixed in 2.9.6 Patch available GHSA-468w-8x39-gj5v
Remediation
- Fix · CNA traefik (traefik) Fixed in 2.9.6
- Fix · GHSA-468w-8x39-gj5v github.com/traefik/traefik/v2 (Go) Fixed in 2.9.6 Advisory →
Timeline
- 2026-10-02 Threatist record created from CVE-2022-46153
- 2026-10-03 Alias added: GHSA-468w-8x39-gj5v
References
Patch 2
Advisory 3
More Traefik vulnerabilities
- TI-2023-23979 The HTTP/2 protocol allows a denial of service (server resource consumption) because… KEVCVSS 3.1HIGH 7.5
- TI-2023-25774 Uncontrolled Resource Consumption in Traefik CVSS 3.1HIGH 7.5
- TI-2025-40914 Traefik doesn't Prevent Path Normalization Bypass in Router + Middleware Rules CVSS 4.0MEDIUM 6.9
- TI-2022-07529 Authorization header displayed in the debug logs CVSS 3.1MEDIUM 6.5
- TI-2024-30459 HTTP client can remove the X-Forwarded headers in Traefik CVSS 3.1CRITICAL 9.8
- TI-2026-60261 Traefik v3.7.0 Authentication Bypass via from-to-www-redirect CVSS 4.0CRITICAL 9.3
Sources
- CVE-2022-46153 · CVE Program
- CVE-2022-46153 · NVD
- FIRST EPSS
- GHSA-468w-8x39-gj5v · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences