CVE-2026-79756highobserved exploitationCWE-78

CVE-2026-79756: high-severity vulnerability in nuclio

Nuclio: Unauthenticated OS command injection via namespace header in list-all resource path on local platform

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43Vexday Risk Score

Prioritize patching. It exploitation observed by VulnCheck.

ssvc Actcvss 8.7epss 7.5%
from disclosure to weapon
Published on NVDSep 2
VulnCheck+19d
Nuclio is a "Serverless" framework for Real-Time Events and Data Processing. Prior to version 1.17.4, the fix for unauthenticated OS command injection in the nuclio dashboard on the local/Docker platform is incomplete. The fix added validateFunctionName for function names and common.Quote() for the named-resource shell command path, but the list-all resource path (triggered when no specific resource name is provided) still interpolates the resourceNamespace parameter unquoted into a /bin/sh -c command string. An unauthenticated attacker can inject shell metacharacters via the X-Nuclio-Function-Namespace, X-Nuclio-Project-Namespace, or X-Nuclio-Function-Event-Namespace HTTP headers to achieve arbitrary command execution inside the dashboard container. This issue has been patched in version 1.17.4.
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N
Affected products
nuclio · nuclio
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