Vulnerability details
CVE-2025-15566
Kubernetes ingress-nginx
ingress-nginx auth-proxy-set-headers nginx configuration injection
CVSS 3.1
8.8High
Official description
A security issue was discovered in ingress-nginx where the `nginx.ingress.kubernetes.io/auth-proxy-set-headers` Ingress annotation can be used to inject configuration into nginx. This can lead to arbitrary code execution in the context of the ingress-nginx controller, and disclosure of Secrets accessible to the controller. (Note that in the default installation, the controller can access all Secrets cluster-wide.)
CVSS scores
| Score | Version | Source | Vector |
|---|---|---|---|
| 8.8High | 3.1 | CVEProject cvelistV5 (CNA) (kubernetes) | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H |
Affected products
| Vendor | Product | Versions | Source |
|---|---|---|---|
| Kubernetes | ingress-nginx | v < 1.12.5 | CVEProject cvelistV5 (CNA) |
| Kubernetes | ingress-nginx | v < 1.13.1 | CVEProject cvelistV5 (CNA) |
References and advisories
1
Kolun on Telegram @kolunsec
Exploited CVEs, key news and a daily digest
Alerts for this product's next CVEsFollow the product to get new vulnerabilities on Telegram.
Details
- Published
- 2026-02-06
- Last updated
- 2026-02-26
- State
- Published
- Assigner (CNA)
- kubernetes
Exploit prediction (EPSS)
0.52%
Probability of exploitation in 30 days
44.4%
Percentile (among all CVEs)
SSVC assessment (CISA)
- Automatable
- No
- Exploitation
- None
- Technical impact
- Total
Weaknesses (CWE)
- CWE-20Improper Input Validation