GHSA-mgvx-rpfc-9mpv — critical GitHub Advisory (CVE-2025-1974) in go/k8s.io/ingress-nginx

Description

A security issue was discovered in Kubernetes where under certain conditions, an unauthenticated attacker with access to the pod network can achieve arbitrary code execution in the context of the ingress-nginx controller. This can lead to disclosure of Secrets accessible to the controller. (Note that in the default installation, the controller can access all Secrets cluster-wide.)

Basic information

Type: reviewed
Severity: critical
Advisory on GitHub: Open advisory ↗
Repository advisory: —
Source code: Browse source ↗
Published (advisory): 2025-03-25 00:30:26 UTC
Updated: 2026-02-04 21:49:41 UTC
GitHub reviewed: 2025-03-25 15:10:14 UTC
NVD published: 2025-03-24

Score	Percentile
91.58%	99.68%

CVSS Scores

Base score	Version	Severity	Vector
9.8	3.1	—	`CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H` Click to expand Attack vector (AV:N) Could be attacked over the internet or any normal routed network—not just someone sitting at the machine. Attack complexity (AC:L) Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup. Privileges required (PR:N) No account or special rights needed—anonymous or random user is enough. User interaction (UI:N) Nobody has to click “OK” or open a trap file; it can work without a victim helping. Scope (S:U) Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems. Confidentiality (C:H) Serious risk that confidential data gets exposed in a big way. Integrity (I:H) They could widely tamper with or forge data—trust in the data is badly hurt. Availability (A:H) Could take the service down hard or make it unusable for people who depend on it.

Identifiers

Type	Value
GHSA	GHSA-mgvx-rpfc-9mpv ↗
CVE	CVE-2025-1974 ↗

CWEs

CWE id	Name
CWE-653	Improper Isolation or Compartmentalization

Credits

dor-hayun (analyst)

Affected packages (2)

Vulnerable version ranges and first patched releases as published by GitHub.

Ecosystem	Package	Vulnerable range	First patched	Vulnerable functions
go	k8s.io/ingress-nginx	< 1.11.5	1.11.5	—
go	k8s.io/ingress-nginx	>= 1.12.0-beta.0, < 1.12.1	1.12.1	—

ingress-nginx admission controller RCE escalation