Incorrect permission assignment in Nginx Controller
Priority LOW 24CWE-732Published · Updated
Key facts
- Attack vector
- Local
- Privileges required
- Low
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- High · None · None
- Fix status
- No fix listed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA.
Summary
The Nginx Controller 3.x before 3.7.0 agent configuration file /etc/controller-agent/agent.conf is world readable with current permission bits set to 644.
Why it matters now
EPSS 0.00229 13th percentileScored 2026-11-07
Fix No fix listed No fixed version in the sources yet
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 |
|---|---|---|---|---|---|
| — | Nginx Controller | “3.x before 3.7.0” | — | No fix listed | CNA |
- Nginx Controller Vendor— Affected “3.x before 3.7.0” Fixed in — No fix listed CNA
Remediation
No fixed version listed by the sources yet.
Timeline
- 2026-10-02 Threatist record created from CVE-2021-23021
- 2026-10-03 Alias added: GHSA-2ffq-2568-c74h
References
More F5 Nginx Controller vulnerabilities
- TI-2020-16818 Path traversal in NGINX Controller CVSS 3.1CRITICAL 9.8
- TI-2020-04819 Cross-site scripting in NGINX Controller CVSS 3.1CRITICAL 9.6
- TI-2020-04781 In NGINX Controller versions prior to 3.2.0, an unauthenticated attacker with network… CVSS 3.1HIGH 8.6
- TI-2020-04818 Cross-site request forgery in NGINX Controller CVSS 3.1HIGH 8.8
- TI-2020-04812 Session fixation in NGINX Controller CVSS 3.1HIGH 8.1
- TI-2020-04785 Cleartext transmission of sensitive information in NGINX Controller CVSS 3.1HIGH 8.1
Sources
- CVE-2021-23021 · CVE Program
- CVE-2021-23021 · NVD
- FIRST EPSS
- GHSA-2ffq-2568-c74h · 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