Vulnerability details
CVE-2026-29042
nuclio nuclio
Nuclio Shell Runtime Command Injection Leading to Privilege Escalation
CVSS 4.0
8.9High
Official 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 scores
| Score | Version | Source | Vector |
|---|---|---|---|
| 8.9High | 4.0 | CVEProject cvelistV5 (CNA) (GitHub_M) | CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:P |
Affected products
| Vendor | Product | Versions | Source |
|---|---|---|---|
| nuclio | nuclio | < 1.15.20 | CVEProject cvelistV5 (CNA) |
References and advisories
4- https://github.com/nuclio/nuclio/security/advisories/GHSA-95fj-3w7g-4r27 x_refsource_CONFIRM
- https://github.com/nuclio/nuclio/pull/4030 x_refsource_MISC
- https://github.com/nuclio/nuclio/commit/5352d7e16cf92f4350a2f8d806c4b80b626b5c5a x_refsource_MISC
- https://github.com/nuclio/nuclio/releases/tag/1.15.20 x_refsource_MISC
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Details
- Published
- 2026-03-06
- Last updated
- 2026-03-09
- State
- Published
- Assigner (CNA)
- GitHub_M
Exploit prediction (EPSS)
2.58%
Probability of exploitation in 30 days
85.2%
Percentile (among all CVEs)
SSVC assessment (CISA)
- Automatable
- Yes
- Exploitation
- Proof of concept
- Technical impact
- Total
Weaknesses (CWE)
- CWE-75Failure to Sanitize Special Elements into a Different Plane (Special Element Injection)