CVE-2026-29042

Nuclio Shell Runtime Command Injection Leading to Privilege Escalation

State
Published
Severity
8.9 High
Published
Mar 6, 2026
Updated
Mar 9, 2026
Reserved
Mar 3, 2026

Read the record on cve.org

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.

Scores

CVSSScoreVectorSource
4.08.9 HighCVSS: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:PGitHub_M

Weaknesses

  • CWE-75 Failure to Sanitize Special Elements into a Different Plane (Special Element Injection)

Affected Products

ProductVersions
nuclionuclio
  • < 1.15.20Affected

References

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