SEPTEMBER 17, 2026
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Case File

CVE-2026-52831

HIGH · CVSS 8 EPSS 0.32% Public Exploit

Source: NVD + CISA KEV + EPSS · Published 2026-09-02 · Last synced 2026-09-17

CyberRota Analysis

AI-Generated

The Nuclio framework for Kubernetes is vulnerable due to insufficient sanitization of user-supplied data in cron trigger specifications, allowing potential command injection through the invocation string built for CronJob containers. This vulnerability could lead to unauthorized command execution, posing a significant risk to the integrity and security of affected Kubernetes environments. Organizations using Nuclio versions prior to 1.16.4 should prioritize upgrading to mitigate this high-severity risk.

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-2026-52831
Severity
HIGH
CVSS
8
EPSS
0.32%
Kubernetes

Original NVD Description

Nuclio is a "Serverless" framework for Real-Time Events and Data Processing. Prior to version 1.16.4, the Nuclio controller builds a curl invocation string for each cron trigger and stores it as the args of a Kubernetes CronJob container (/bin/sh, -c, <command>). Two fields in the trigger specification flow into this string without adequate sanitization: event.headers keys and event.body. This issue has been patched in version 1.16.4.