Vulnerability · Published Sep 2, 2026 · Assigned by GitHub_M

CVE-2026-79756Nuclio: Unauthenticated OS command injection via namespace header in list-all resource path on local platform

High 8.7

In plain English

A high-severity OS command injection in nuclio from nuclio. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 7.5% (higher than 95% of all known vulnerabilities).

Severity (CVSS 4.0)8.7High

Exploit odds (30 days)7.5%top 5.5% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official description

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.

Affected products (as reported)

Vendor	Product	Versions
nuclio	nuclio	< 1.17.4

Weakness: CWE-78 · Vector: 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

References

https://github.com/nuclio/nuclio/security/advisories/GHSA-mq8w-f7w8-5rgg x_refsource_CONFIRM
https://github.com/nuclio/nuclio/pull/4223 x_refsource_MISC
https://github.com/nuclio/nuclio/commit/86d4e39387d8845f567649201798800830f08411 x_refsource_MISC
https://github.com/nuclio/nuclio/releases/tag/1.17.4 x_refsource_MISC