CVE-2020-26222
HIGHDependabot 0.119.0.beta1-0.125.1 - Remote Code Execution via Malicious Source Branch Name
Title source: llmDescription
Dependabot is a set of packages for automated dependency management for Ruby, JavaScript, Python, PHP, Elixir, Rust, Java, .NET, Elm and Go. In Dependabot-Core from version 0.119.0.beta1 before version 0.125.1, there is a remote code execution vulnerability in dependabot-common and dependabot-go_modules when a source branch name contains malicious injectable bash code. For example, if Dependabot is configured to use the following source branch name: "/$({curl,127.0.0.1})", Dependabot will make a HTTP request to the following URL: 127.0.0.1 when cloning the source repository. The fix was applied to version 0.125.1. As a workaround, one can escape the branch name prior to passing it to the Dependabot::Source class.
References (3)
Core 3
Core References
Exploit, Third Party Advisory x_refsource_confirm
https://github.com/dependabot/dependabot-core/security/advisories/GHSA-23f7-99jx-m54r
Patch, Third Party Advisory x_refsource_misc
https://github.com/dependabot/dependabot-core/pull/2727
Patch, Third Party Advisory x_refsource_misc
https://github.com/dependabot/dependabot-core/commit/e089116abbe284425b976f7920e502b8e83a61b5
Scores
CVSS v3
8.7
EPSS
0.0048
EPSS Percentile
65.1%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:H/I:H/A:N
Details
CWE
CWE-74
Status
published
Products (4)
dependabot_project/dependabot
0.119.0 (2 CPE variants)
dependabot_project/dependabot
0.119.1 - 0.125.1
rubygems/dependabot-common
0.119.0.beta1 - 0.125.1RubyGems
rubygems/dependabot-omnibus
0.119.0.beta1 - 0.125.1RubyGems
Published
Nov 13, 2020
Tracked Since
Feb 18, 2026