What’s Vulnerable › Vulnerabilities

CVE-2026-79754: Nuclio: Kaniko build tempDir command injection

• Severity: high (CVSS 7.1 v4.0)
• Exploited in the wild: not listed in CISA KEV
• EPSS: 0.7% 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-77

Description

Nuclio is a "Serverless" framework for Real-Time Events and Data Processing. From version 1.6.19 to before version 1.17.2, Nuclio's Dashboard build pipeline does not sanitize the spec.build.tempDir field before using it to construct a shell command. When the Kaniko container builder is enabled, a user with function-create permission can inject shell metacharacters into this field and achieve arbitrary command execution inside the Dashboard container, which runs with a Kubernetes service account holding wildcard access to Secrets, Pods, Jobs, and Deployments in its namespace. This issue has been patched in version 1.17.2.

Affected products

• nuclio: from 1.6.19, < 1.17.2

References

• https://github.com/nuclio/nuclio/commit/e3ed7de65c20c270a2035b7c27b25800e5b1e252
• https://github.com/nuclio/nuclio/pull/4190
• https://github.com/nuclio/nuclio/releases/tag/1.17.2
• https://github.com/nuclio/nuclio/security/advisories/GHSA-x44h-qmrv-mh72
• https://github.com/nuclio/nuclio/security/advisories/GHSA-x44h-qmrv-mh72

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