Session fixation in NGINX Controller
Priority LOW 37CWE-384Published · Updated
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- Required
- Attack complexity
- Low
- Impact type
- Spoofing
- Confidentiality · integrity · availability
- High · High · None
- Fix status
- Fixed
Attack profile from CVSS 3.1 · NVD. Fix status from CNA. Impact type from CWE-384.
Summary
On versions 3.0.0-3.3.0, the NGINX Controller webserver does not invalidate the server-side session token after users log out.
Why it matters now
EPSS 0.01019 63rd percentileScored 2026-11-07
Fix Fixed NGINX Controller: 3.4.0
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 | before 3.4.0 | 3.4.0 | Patch available | CNA |
- NGINX Controller Vendor— Affected before 3.4.0 Fixed in 3.4.0 Patch available CNA
Remediation
- Fix · CNA NGINX Controller Fixed in 3.4.0
Timeline
- 2026-10-02 Threatist record created from CVE-2020-5894
- 2026-10-03 Alias added: GHSA-q676-x7h7-vq4f
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-2020-04785 Cleartext transmission of sensitive information in NGINX Controller CVSS 3.1HIGH 8.1
- TI-2020-04828 Missing authentication in NGINX Controller CVSS 3.1HIGH 7.5
Sources
- CVE-2020-5894 · CVE Program
- CVE-2020-5894 · NVD
- FIRST EPSS
- GHSA-q676-x7h7-vq4f · GitHub Advisory Database · CC BY 4.0
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