# ngress-nginx controller - configuration injection via unsanitized auth-tls-match-cn annotation

Advisory record · `GHSA-823x-fv5p-h7hw`

- **Identifiers:** `GHSA-823x-fv5p-h7hw` · `CVE-2025-1097` · `GO-2025-3565`
- **State:** Confirmed
- **Severity:** CVSS 8.8 High
- **Critical:** Yes: CVSS 7+ and EPSS
- **Weakness (CWE):** [CWE-15](https://cwe.mitre.org/data/definitions/15.html) · [CWE-20](https://cwe.mitre.org/data/definitions/20.html)
- **Tags:** [CWE-15](https://agentprime.io/advisories/tag/cwe-15.md) · [CWE-20](https://agentprime.io/advisories/tag/cwe-20.md)
- **Published:** 25 Mar 2025
- **Updated:** 10 Sept 2026
- **Reviewed by a person:** No

Published by the GitHub Advisory Database at 25 Mar 2025, 00:30 UTC. agentprime has not analysed this yet, so whether it affects any app is not known.

## Critical

Critical, because:

- CVSS score 8.8 (7.0 or more) and EPSS 0.37 (0.1 or more): a high score and a real chance of exploitation in the next 30 days.

How we decide what’s critical: <https://agentprime.io/advisories/critical.md>

## Affected packages

- `k8s.io/ingress-nginx` (Go): affected `<1.11.5 || >=1.12.0-beta.0, <1.12.1`; fixed in `1.11.5`, `1.12.1`

## Not analysed yet

We haven’t published our analysis of this Advisory yet. Once a person has reviewed it, this page will say what’s vulnerable, what has to be true for your app to be affected, and how to check.

## Severity and exploitation

- 8.8 High, CVSS 3.1: `CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H`, from CNA (kubernetes)

- **CISA KEV:** Not listed.
- **EPSS:** 0.37, the 98th percentile, on 5 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

## Timeline

- 31 Oct 2026, 14:43 UTC: First seen by agentprime
- 31 Oct 2026, 14:43 UTC: [Confirmed by OSV](https://osv.dev/vulnerability/GHSA-823x-fv5p-h7hw)

## Sources

- [GitHub Advisory Database: GHSA-823x-fv5p-h7hw](https://github.com/advisories/GHSA-823x-fv5p-h7hw)
- [OSV: GHSA-823x-fv5p-h7hw](https://osv.dev/vulnerability/GHSA-823x-fv5p-h7hw)
- <https://nvd.nist.gov/vuln/detail/CVE-2025-1097>
- <https://github.com/kubernetes/kubernetes/issues/131007>
- <https://github.com/kubernetes/ingress-nginx>
- <https://github.com/kubernetes/ingress-nginx/releases/tag/controller-v1.11.5>
- <https://github.com/kubernetes/ingress-nginx/releases/tag/controller-v1.12.1>
- <https://groups.google.com/g/kubernetes-security-announce/c/2qa9DFtN0cQ>
- <https://security.netapp.com/advisory/ntap-20250328-0008>

Facts on this page come from the GitHub Advisory Database (CC-BY 4.0), OSV and the other sources listed, as published. We don’t reproduce full advisory descriptions, which can contain exploit code.

## Check whether this affects you

A Match means an installed version is in the affected range above. Most don’t affect the app; agentprime hasn’t analysed this one yet.

- With the agentprime MCP server (<https://api.agentprime.io/mcp>), ask your agent to check the project: `check_lockfile` sends a lockfile, `check_packages` a list of installed packages, and both return the Matches and the upgrades that clear them. `get_advisory` returns this record. Setup: <https://agentprime.io/mcp.md>
- In a browser: <https://agentprime.io/check/> reads your lockfile in the browser, never uploading it.
- Whether it touches your code, with file and line: the Claude Code plugin, <https://agentprime.io/plugin.md>
- As JSON: <https://api.agentprime.io/v1/advisories/GHSA-823x-fv5p-h7hw>, or `POST https://api.agentprime.io/v1/match` with your packages (<https://agentprime.io/api.md>)

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The web page: <https://agentprime.io/advisories/GHSA-823x-fv5p-h7hw/>. Everything for agents: <https://agentprime.io/llms.txt>.