Vulnerability 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.
CVSS Score
CRITICAL
Affected Products
| Vendor | Product | Versions |
|---|---|---|
| Iguazio | Nuclio | < 1.15.20 |
Related Weaknesses (CWE)
References
- https://github.com/nuclio/nuclio/commit/5352d7e16cf92f4350a2f8d806c4b80b626b5c5aPatch
- https://github.com/nuclio/nuclio/pull/4030Issue TrackingPatch
- https://github.com/nuclio/nuclio/releases/tag/1.15.20ProductRelease Notes
- https://github.com/nuclio/nuclio/security/advisories/GHSA-95fj-3w7g-4r27ExploitMitigationVendor Advisory
FAQ
What is CVE-2026-29042?
CVE-2026-29042 is a vulnerability with a CVSS score of 9.8 (CRITICAL). 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...
How severe is CVE-2026-29042?
CVE-2026-29042 has been rated CRITICAL with a CVSS base score of 9.8/10. This is considered a critical vulnerability requiring immediate attention.
Is there a patch for CVE-2026-29042?
Check the references section above for vendor advisories and patch information. Affected products include: Iguazio Nuclio.