critical10.0
CVE-2026-52831
Nuclio: Unsanitized cron trigger event headers/body injected into CronJob shell command leads to persistent RCE
Impact
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.
Affected packages
| Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|
| go | github.com/nuclio/nuclio | < 0.0.0-20260601075854-3356b86a8bfa | 0.0.0-20260601075854-3356b86a8bfa |