configurationwatcher.go in Traefik 2.x before 2.1.4 and TraefikEE 2.0.0 mishandles the…
Priority LOW 34CWE-295Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- Spoofing, Information disclosure
- Confidentiality · integrity · availability
- None · High · None
- Fix status
- Fixed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA and GitHub. Impact type from CWE-295 and CWE-200.
Summary
configurationwatcher.go in Traefik 2.x before 2.1.4 and TraefikEE 2.0.0 mishandles the purging of certificate contents from providers before logging.
Why it matters now
EPSS 0.00739 54th percentileScored 2026-11-07
Fix Fixed github.com/traefik/traefik (Go): 2.1.4
SSVC decision points
Not available: CISA has not published SSVC decision points for this record.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| — | — | all versions | — | No fix listed | CNA |
| — | github.com/traefik/traefik (Go) | before 2.1.4 | 2.1.4 | Patch available | GHSA-7h6j-2268-fhcm |
- — Vendor— Affected all versions Fixed in — No fix listed CNA
- github.com/traefik/traefik (Go) Vendor— Affected before 2.1.4 Fixed in 2.1.4 Patch available GHSA-7h6j-2268-fhcm
Remediation
- Fix · GHSA-7h6j-2268-fhcm github.com/traefik/traefik (Go) Fixed in 2.1.4 Advisory →
Timeline
- 2026-10-02 Threatist record created from CVE-2020-9321
- 2026-10-03 Alias added: GHSA-7h6j-2268-fhcm
References
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-2020-9321 · CVE Program
- CVE-2020-9321 · NVD
- FIRST EPSS
- GHSA-7h6j-2268-fhcm · 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