CVE-2026-52831

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.

• CWE-78

• https://github.com/nuclio/nuclio/commit/3356b86a8bfab3f960aa420310ebff765df9dede
• https://github.com/nuclio/nuclio/releases/tag/1.16.4
• https://github.com/nuclio/nuclio/security/advisories/GHSA-v5px-423j-pf7p

Published

Sep 2, 2026

Last Modified

Sep 9, 2026

Status

Deferred

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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