CVE-2026-29042

Nuclio is a "Serverless" framework for Real-Time Events and Data Processing. Prior to version 1.15.20, the Nuclio Shell Runtime component contains a command injection vulnerability in how it processes user-supplied arguments. When a function is invoked via HTTP, the runtime reads the X-Nuclio-Arguments header and directly incorporates its value into shell commands without any validation or sanitization. This issue has been patched in version 1.15.20.

• CWE-75

• https://github.com/nuclio/nuclio/commit/5352d7e16cf92f4350a2f8d806c4b80b626b5c5aPatch
• https://github.com/nuclio/nuclio/pull/4030Issue Tracking, Patch
• https://github.com/nuclio/nuclio/releases/tag/1.15.20Product, Release Notes
• https://github.com/nuclio/nuclio/security/advisories/GHSA-95fj-3w7g-4r27Exploit, Mitigation, Vendor Advisory

Published

Mar 6, 2026

Last Modified

Jun 17, 2026

Status

Analyzed

• How Strix found a critical auth bypass in etcdStrix autonomously discovered a critical authentication bypass in etcd, later designated CVE-2026-33413.
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