What’s Vulnerable › Vulnerabilities

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

• Severity: high (CVSS 8.7 v4.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 7.5% probability of exploitation in the next 30 days
• Public exploit or detection template: none known
• Published: 2026-09-02 · updated 2026-09-09
• Weakness: CWE-78

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

• nuclio: before 1.17.4

References

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

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