Vulnerability 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.
CVSS Score
HIGH
Related Weaknesses (CWE)
References
- 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
FAQ
What is CVE-2026-52831?
CVE-2026-52831 is a vulnerability with a CVSS score of 8.0 (HIGH). 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 a...
How severe is CVE-2026-52831?
CVE-2026-52831 has been rated HIGH with a CVSS base score of 8.0/10. Review the CVSS metrics above for detailed severity breakdown.
Is there a patch for CVE-2026-52831?
Check the references section above for vendor advisories and patch information. Review vendor security bulletins for remediation guidance.