CVE-2025-68144
mcp-server-git argument injection in git_diff and git_checkout functions allows overwriting local files
Description
In mcp-server-git versions prior to 2025.12.17, the git_diff and git_checkout functions passed user-controlled arguments directly to git CLI commands without sanitization. Flag-like values (e.g., `--output=/path/to/file` for `git_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 2025.12.17 resolve this issue when it is released.
INFO
Published Date :
Dec. 17, 2025, 11:16 p.m.
Last Modified :
Dec. 18, 2025, 3:07 p.m.
Remotely Exploit :
Yes !
Source :
[email protected]
Affected Products
The following products are affected by CVE-2025-68144
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
No affected product recoded yet
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 4.0 | MEDIUM | [email protected] |
Solution
- Update mcp-server-git to version 2025.12.17.
- Verify git commands sanitize user input.
- Apply input validation to git functions.
- Restrict arguments to valid git refs.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2025-68144.
| URL | Resource |
|---|---|
| https://github.com/modelcontextprotocol/servers/security/advisories/GHSA-9xwc-hfwc-8w59 |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2025-68144 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2025-68144
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2025-68144 vulnerability anywhere in the article.
-
CybersecurityNews
Multiple 0-day Vulnerabilities in Anthropic Git MCP Server Enables Code Execution
Three zero-day vulnerabilities in mcp-server-git, the reference implementation of Git integration for the Model Context Protocol (MCP). The flaws stem from insufficient input validation and argument s ... Read more
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The Hacker News
Three Flaws in Anthropic MCP Git Server Enable File Access and Code Execution
A set of three security vulnerabilities has been disclosed in mcp-server-git, the official Git Model Context Protocol (MCP) server maintained by Anthropic, that could be exploited to read or delete ar ... Read more
-
The Register
Anthropic quietly fixed flaws in its Git MCP server that allowed for remote code execution
Anthropic has fixed three bugs in its official Git MCP server that researchers say can be chained with other MCP tools to remotely execute malicious code or overwrite files via prompt injection. The G ... Read more
The following table lists the changes that have been made to the
CVE-2025-68144 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
New CVE Received by [email protected]
Dec. 17, 2025
Action Type Old Value New Value Added Description In mcp-server-git versions prior to 2025.12.17, the git_diff and git_checkout functions passed user-controlled arguments directly to git CLI commands without sanitization. Flag-like values (e.g., `--output=/path/to/file` for `git_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 2025.12.17 resolve this issue when it is released. Added CVSS V4.0 AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:N/VA:N/SC:N/SI:H/SA:L/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X Added CWE CWE-88 Added Reference https://github.com/modelcontextprotocol/servers/security/advisories/GHSA-9xwc-hfwc-8w59