CVE-2026-52831 — Nuclio: Unsanitized cron trigger event headers/body injected into CronJob shell command leads to persistent RCE
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…
Published: 2026-09-02 · CVSS: 8.0 · CVSS 3.1
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.
Source: CVE Program · Revision 8b16575c39f1e1810c5e863010da073d2d3285e7