VULNERABILITY INTELLIGENCE

CVE-2021-21248

CVSS score9.6 CRITICAL
EPSS probability1.47%
CISA KEVNot currently listed
Published2021-01-15
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:N

Description

OneDev is an all-in-one devops platform. In OneDev before version 4.0.3, there is a critical vulnerability involving the build endpoint parameters. InputSpec is used to define parameters of a Build spec. It does so by using dynamically generated Groovy classes. A user able to control job parameters can run arbitrary code on OneDev's server by injecting arbitrary Groovy code. The ultimate result is in the injection of a static constructor that will run arbitrary code. For a full example refer to the referenced GHSA. This issue was addressed in 4.0.3 by escaping special characters such as quote from user input.

Weakness classification

  • security-advisories@github.com: CWE-74
  • nvd@nist.gov: CWE-94

Primary references