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CVE-2026-42294

HIGH · CVSS 7.5 EPSS 0.05% Public Exploit

Source: NVD + CISA KEV + EPSS · Published: 2026-05-09 · Last synced: 2026-06-08

CyberRota Analysis

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Public Exploit Signal

A public exploit, PoC, GitHub repository or Metasploit reference was detected for this CVE.

Note: these links are listed for security research and verification purposes only.

CVE
CVE-2026-42294
Severity
HIGH
CVSS
7.5
EPSS
0.05%
Kubernetes

Original NVD Description

Argo Workflows is an open source container-native workflow engine for orchestrating parallel jobs on Kubernetes. Prior to versions 3.7.14 and 4.0.5, the Webhook Interceptor loads the entire request body into memory before authenticating the request or verifying its signature. This occurs on the /api/v1/events/ endpoint, which is publicly accessible (albeit intended for webhooks). An attacker can send a request with an extremely large body (e.g., multiple gigabytes), causing the Argo Server to allocate excessive memory, potentially leading to an Out-Of-Memory (OOM) crash and denial of service. This issue has been patched in versions 3.7.14 and 4.0.5.