CVE-2026-29042CWE-75

Nuclio Shell Runtime Command Injection Leading to Privilege Escalation

High · published March 6, 2026

CVSS v4.0
8.9
EPSS
3%
Percentile
88.7
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v4.0
8.9 · HIGH
Vector
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
EPSS
0.03380 · 88.7th percentile
Weakness
CWE-75 · Failure to Sanitize Special Elements into a Different Plane (Special Element Injection)
Published
2026-03-06T06:57Z
EPSS history
Timeline
  • 06 MAR 06:57Z
    Nuclio Shell Runtime Command Injection Leading to Privilege Escalation
    cvelistv5