High severityNVD Advisory· Published Mar 6, 2026· Updated Mar 9, 2026
Nuclio Shell Runtime Command Injection Leading to Privilege Escalation
CVE-2026-29042
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.
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LLM-synthesized narrative grounded in this CVE's description and references.
Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
github.com/nuclio/nuclioGo | < 1.15.20 | 1.15.20 |
Affected products
3- ghsa-coords2 versionspkg:golang/github.com/nuclio/nucliopkg:rpm/opensuse/govulncheck-vulndb&distro=openSUSE%20Leap%2015.6
< 1.15.20+ 1 more
- (no CPE)range: < 1.15.20
- (no CPE)range: < 0.0.20260317T205859-150000.1.152.1
Patches
Vulnerability mechanics
References
6- github.com/advisories/GHSA-95fj-3w7g-4r27ghsaADVISORY
- nvd.nist.gov/vuln/detail/CVE-2026-29042ghsaADVISORY
- github.com/nuclio/nuclio/commit/5352d7e16cf92f4350a2f8d806c4b80b626b5c5aghsax_refsource_MISCWEB
- github.com/nuclio/nuclio/pull/4030ghsax_refsource_MISCWEB
- github.com/nuclio/nuclio/releases/tag/1.15.20ghsax_refsource_MISCWEB
- github.com/nuclio/nuclio/security/advisories/GHSA-95fj-3w7g-4r27ghsax_refsource_CONFIRMWEB
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