[ CVE-2026-102827 · Published 29 Sep 2026 ]
simple-git: unsafe-operations plugin bypass via git long-option abbreviation (--receive-p/--exe) -> command execution (residual of CVE-2026-28291)
[ Why it matters ]Priority signals
- Critical severity: CVSS 9.8
[ Description ]Official description
simple-git, an interface for running git commands in any node.js application, enables applications to execute Git operations from JavaScript. Prior to 4.0.0, the default blockUnsafeOperationsPlugin compares parsed option names with literal dangerous option spellings while Git accepts unambiguous long-option abbreviations. Attacker-influenced push arguments such as abbreviated --receive-pack or --exec forms can therefore bypass detectVulnerableFlags, reach git push against a local or file remote or an attacker-influenced receive-pack target, and cause Git to invoke an attacker-selected command in consumers that expose those arguments. The clone-side abbreviation handling does not protect the push path. This issue is fixed in 4.0.0.
[ Fixes ]Fixes and patches
- simple-git 4.0.0Fixed version · GitHub Advisories · npm package simple-git: upgrade to 4.0.0 or later (affected <= 3.36.0)
- Patch on github.comVendor patch or bulletin · NVD · Reference tagged 'Patch' by NVD
- Patch on github.comVendor patch or bulletin · NVD · Reference tagged 'Patch' by NVD
[ Packages ]Affected open-source packages
- simple-git npmAffected <= 3.36.0 · fixed in 4.0.0 · GHSA-858h-whjf-mvg5