Vulnerability in Iguazio Nuclio
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.
Published · last modified .
CVSS v3 metric
CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.
EPSS exploit prediction
EPSS: 0.034 (88.6th percentile), scored .
Low probability of exploitation in the next 30 days, but still tracked. 89th percentile — 88.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.
EPSS over last 30 days · oldest: 0.023 · newest: 0.034 · change: +0.011
Affected products
- Iguazio Nuclio
- Nuclio — versions < 1.15.20
Weakness classification (CWE)
References
- github.com/nuclio/nuclio/security/advisories/GHSA-95fj-3w7g-4r27 (Exploit, Mitigation, Vendor Advisory)
- github.com/nuclio/nuclio/pull/4030 (Patch, Issue Tracking)
- github.com/nuclio/nuclio/commit/5352d7e16cf92f4350a2f8d806c4b80b626b5c5a (Patch)
- github.com/nuclio/nuclio/releases/tag/1.15.20 (Product, Release Notes)
Frequently asked questions
- What is CVE-2026-29042?
- CVE-2026-29042 is a critical-severity vulnerability in Iguazio Nuclio, classified under CWE-75. CVSS score: 9.8/10. Published 2026-03-06.
- How severe is CVE-2026-29042?
- Critical severity. CVSS v3 base score is 9.8 out of 10.