Vulnerability Description
When NGINX Ingress Controller processes Ingress or TransportServer resources, an authenticated, remote attacker with permission to create or modify Ingress or TransportServer resources can cause the NGINX Ingress Controller process to terminate. Impact: The NGINX Ingress Controller control plane process terminates and enters a persistent crash loop while the malformed Ingress or TransportServer resource remains in the cluster. This vulnerability allows a remote, authenticated attacker with at least Ingress or TransportServer resource write access to cause a denial-of-service (DoS) on the NGINX Ingress Controller system. There is no data plane exposure; this is a control plane issue only. Note: Software versions which have reached End of Technical Support (EoTS) are not evaluated.
CVSS Score
MEDIUM
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| F5 | Nginx Ingress Controller | >= 3.5.0, <= 3.7.2 |
Related Weaknesses (CWE)
References
- https://my.f5.com/manage/s/article/K000161834MitigationVendor Advisory
FAQ
What is CVE-2026-52865?
CVE-2026-52865 is a vulnerability with a CVSS score of 6.5 (MEDIUM). When NGINX Ingress Controller processes Ingress or TransportServer resources, an authenticated, remote attacker with permission to create or modify Ingress or TransportServer resources can cause the N...
How severe is CVE-2026-52865?
CVE-2026-52865 has been rated MEDIUM with a CVSS base score of 6.5/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-52865?
Check the references section above for vendor advisories and patch information. Affected products include: F5 Nginx Ingress Controller.