PYSEC-2026-1622
See a problem?- Import Source
- https://github.com/pypa/advisory-database/blob/main/vulns/mcp-server-git/PYSEC-2026-1622.yaml
- JSON Data
- https://api.osv.dev/v1/vulns/PYSEC-2026-1622
- Aliases
-
- CVE-2025-68144
- GHSA-9xwc-hfwc-8w59
- Published
- 2026-07-07T16:03:13.214568Z
- Modified
- 2026-07-07T17:47:03.460233612Z
- Severity
-
- 6.3 (Medium) CVSS_V4 - CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:N/SC:N/SI:H/SA:L CVSS Calculator
- Summary
- mcp-server-git argument injection in git_diff and git_checkout functions allows overwriting local files
- Details
-
In mcp-server-git versions prior to 2025.12.18, the gitdiff and gitcheckout functions passed user-controlled arguments directly to git CLI commands without sanitization. Flag-like values (e.g.,
--output=/path/to/fileforgit_diff) would be interpreted as command-line options rather than git refs, enabling arbitrary file overwrites. The fix adds validation that rejects arguments starting with - and verifies the argument resolves to a valid git ref via rev_parse before execution. Users are advised to update to 2025.12.18 resolve this issue.Thank you to https://hackerone.com/yardenporat for reporting.
- References
Affected packages
PyPI / mcp-server-git
Package
- Name
- mcp-server-git
- View open source insights on deps.dev
- Purl
- pkg:pypi/mcp-server-git
Affected ranges
- Type
- ECOSYSTEM
- Events
-
Introduced0Unknown introduced version / All previous versions are affectedFixed2025.12.18