Machine-written summary
Summary written by Claude Haiku from the source advisory. Not reviewed by a person.
The k8s.io/ingress-nginx package is vulnerable in versions before 1.11.5 and from 1.12.0-beta.0 before 1.12.1. An unauthenticated attacker with access to the pod network can achieve arbitrary code execution in the ingress-nginx controller, which can lead to disclosure of Secrets the controller can access. Upgrade to version 1.11.5 or 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
| Score | Rating | CVSS | Vector | Source |
|---|---|---|---|---|
| 9.8 | Critical | 3.1 | CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H | CNA (kubernetes) |
- CISA KEV Not listed.
- EPSS 0.99, the 99th percentile, on 5 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.
Timeline
- 31 Oct 2026, 14:14 UTC First seen by agentprime
- 31 Oct 2026, 14:14 UTC Confirmed by OSV
Sources
- GitHub Advisory Database: GHSA-mgvx-rpfc-9mpv
- OSV: GHSA-mgvx-rpfc-9mpv
- nvd.nist.gov/vuln/detail/CVE-2025-1974
- github.com/kubernetes/kubernetes/issues/131009
- github.com/B1ack4sh/Blackash-CVE-2025-1974
- github.com/kubernetes/ingress-nginx
- github.com/kubernetes/ingress-nginx/releases/tag/controller-v1.11.5
- github.com/kubernetes/ingress-nginx/releases/tag/controller-v1.12.1
- groups.google.com/g/kubernetes-security-announce/c/2qa9DFtN0cQ
- https://github.com/kubernetes/kubernetes/issues/131009
- security.netapp.com/advisory/ntap-20250328-0008
- www.exploit-db.com/exploits/52475