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CVE-2025-1974 — Vulnerability in k8s.io/ingress-nginx — CVE Details

CRITICAL

ingress-nginx admission controller RCE escalation

Published March 25, 2025Updated September 10, 2026Source: osv

Summary

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.)

Advisory Timeline

  • First published March 25, 2025 (566 days ago).
  • Last revised September 10, 2026 — 534 days after initial publication.

Remediation

Upgrade to the fixed version using your package manager.

Go
Update k8s.io/ingress-nginx to 1.11.5 or later
go get k8s.io/ingress-nginx@v1.11.5
Go
Update k8s.io/ingress-nginx to 1.12.1 or later
go get k8s.io/ingress-nginx@v1.12.1

After upgrading, run your dependency scanner again to confirm the vulnerability is resolved.

Affected Packages (2)

Affects 1 ecosystem: go (1).

PackageEcosystemAffectedFixed In
k8s.io/ingress-nginx
go
All versions1.11.5
k8s.io/ingress-nginx
go
All versions1.12.1

Vulnerability Classification

Common Weakness Enumeration (CWE) identifiers for this vulnerability type.

CVSS Score Breakdown

What the CVSS (Common Vulnerability Scoring System) 9.8 score means for each attack dimension.

Attack Vector
Network
Attack Complexity
Low
Privileges Required
None
User Interaction
None
Scope
Unchanged
Confidentiality
High
Integrity
High
Availability
High

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

References

Frequently Asked Questions

What is CVE-2025-1974?
ingress-nginx admission controller RCE escalation This vulnerability has been assigned a severity rating of CRITICAL (CVSS score: 9.8/10).
How do I check if my project is affected by CVE-2025-1974?
CVE-2025-1974 affects k8s.io/ingress-nginx. Use GeekWala's free vulnerability scanner to check your dependencies against CVE-2025-1974 and 200,000+ other known vulnerabilities.

Severity & Exploitability

CVSS Score
9.8

Exploitation is straightforward and causes maximum impact. Patch immediately.

Also Known As

GHSA-mgvx-rpfc-9mpv
GO-2025-3567

Related CVEs

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    Nginx UI: Authenticated Remote Code Execution via Backup Restore App Config Overwrite

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  • CVE-2025-1097
    HIGH

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

  • CVE-2026-1580
    HIGH

    ingress-nginx's `nginx.ingress.kubernetes.io/auth-method` Ingress annotation can be used to inject configuration into nginx

  • CVE-2026-4342
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    ingress-nginx comment-based nginx configuration injection

  • CVE-2025-24514
    HIGH

    ingress-nginx controller - configuration injection via unsanitized auth-url annotation

  • CVE-2026-24512
    HIGH

    ingress-nginx's `rules.http.paths.path` Ingress field can be used to inject configuration into nginx

  • CVE-2025-1098
    HIGH

    ingress-nginx controller - configuration injection via unsanitized mirror annotations

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