CVE-2026-29042

CriticalCVSS 9.8/10Last modified Jun 17, 2026

Description

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.

Metrics

CVSS 3.1 9.8/10CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H

Weakness enumeration

CWE-75

Affected software

Vendor	Product	Versions
nuclio	nuclio	< 1.15.20

References

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

Timeline

Published: Mar 6, 2026
Last modified: Jun 17, 2026
NVD status: Analyzed

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