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.
Advisories
Source ID Title
Github GHSA Github GHSA GHSA-v5px-423j-pf7p Nuclio: Unsanitized cron trigger event headers/body injected into CronJob shell command leads to persistent RCE
Fixes

Solution

No solution given by the vendor.


Workaround

No workaround given by the vendor.

History

Thu, 03 Sep 2026 15:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Thu, 03 Sep 2026 11:15:00 +0000

Type Values Removed Values Added
First Time appeared Nuclio
Nuclio nuclio
Vendors & Products Nuclio
Nuclio nuclio

Wed, 02 Sep 2026 16:45:00 +0000

Type Values Removed Values Added
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.
Title Nuclio: Unsanitized cron trigger event headers/body injected into CronJob shell command leads to persistent RCE
Weaknesses CWE-78
References
Metrics cvssV3_1

{'score': 8, 'vector': 'CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:C/C:H/I:H/A:H'}


Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published:

Updated: 2026-09-03T14:31:56.446Z

Reserved: 2026-06-08T18:11:06.662Z

Link: CVE-2026-52831

cve-icon Vulnrichment

Updated: 2026-09-03T14:08:03.113Z

cve-icon NVD

Status : Received

Published: 2026-09-02T17:17:45.347

Modified: 2026-09-03T15:17:30.357

Link: CVE-2026-52831

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-09-03T11:00:03Z

Weaknesses