CVE-2026-4342 - Vulnerability Analysis

Overview

Ingress-nginx contains a configuration injection vulnerability caused by a combination of Ingress annotations, letting attackers execute arbitrary code and disclose Secrets in the ingress-nginx controller context, exploit requires crafted Ingress annotations.

Severity & Score

Impact

Attackers can execute arbitrary code and disclose Secrets accessible to the ingress-nginx controller, potentially compromising the entire cluster.

Mitigation

Update to the latest version of ingress-nginx with the fix applied.

References

• https://github.com/kubernetes/kubernetes/issues/137893
• http://www.openwall.com/lists/oss-security/2026/03/19/9

Social Media Activity(1 post)

Masto.kukei.eu

@mastokukei

Apr 9, 2026

**WebAssembly (WASM) and GPU acceleration** (e.g., SPIR-V tools, compute-in-memory architectures) - **Security vulnerabilities** (e.g., CVE-2026-4342 in ingress-nginx, xz backdoor fallout) - **Retro computing & emulation** (e.g., TI-99/4A, Mac OS X on Wii) [2/2]

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GitHub Repositories(1 repo)

• https://github.com/stuartMoorhouse/CVE-2026-4342

Related Resources

• Vulnerability Intelligence Dashboard
• Credential Scanner