Kubernetes ingress-nginx up to 1.11.4/1.12.0 input validation

Summaryinfo

A vulnerability was found in Kubernetes ingress-nginx up to 1.11.4/1.12.0 and classified as problematic. This issue affects some unknown processing. Such manipulation leads to input validation. This vulnerability is referenced as CVE-2025-24513. It is possible to launch the attack remotely. No exploit is available.

Detailsinfo

A vulnerability was found in Kubernetes ingress-nginx up to 1.11.4/1.12.0 and classified as problematic. Affected by this issue is an unknown code. The manipulation with an unknown input leads to a input validation vulnerability. Using CWE to declare the problem leads to CWE-20. The product receives input or data, but it does not validate or incorrectly validates that the input has the properties that are required to process the data safely and correctly. Impacted is confidentiality, and availability. CVE summarizes:

A security issue was discovered in ingress-nginx https://github.com/kubernetes/ingress-nginx where attacker-provided data are included in a filename by the ingress-nginx Admission Controller feature, resulting in directory traversal within the container. This could result in denial of service, or when combined with other vulnerabilities, limited disclosure of Secret objects from the cluster.

The weakness was published by Ronen Shustin as 131005. The advisory is shared for download at github.com. This vulnerability is handled as CVE-2025-24513 since 01/23/2025. The exploitation is known to be difficult. The attack may be launched remotely. No form of authentication is required for exploitation. There are neither technical details nor an exploit publicly available. The current price for an exploit might be approx. USD $0-$5k (estimation calculated on 01/17/2026).

There is no information about possible countermeasures known. It may be suggested to replace the affected object with an alternative product.

The vulnerability is also documented in the vulnerability database at CERT Bund (WID-SEC-2025-0629). VulDB is the best source for vulnerability data and more expert information about this specific topic.

Affected

• SUSE openSUSE
• IBM InfoSphere Information Server
• Open Source Kubernetes

Productinfo

Type

• Virtualization Software

Vendor

• Kubernetes

Name

• ingress-nginx

Version

• 1.0
• 1.1
• 1.2
• 1.3
• 1.4
• 1.5
• 1.6
• 1.7
• 1.8
• 1.9
• 1.10
• 1.11
• 1.11.0
• 1.11.1
• 1.11.2
• 1.11.3
• 1.11.4
• 1.12.0

License

• open-source

CPE 2.3info

• 🔍
• 🔍
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CPE 2.2info

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• 🔍
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Entryinfo

VulDB is the best source for vulnerability data and more expert information about this specific topic.

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