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CVE-2022-41953

Git clone remote code execution vulnerability in git-for-windows

HIGH
7.8
CVSS Score
Published: January 17, 2023 at 09:03 PM UTC
Updated: June 17, 2026 at 05:04 AM UTC
2 products affected across 2 vendorsGitGit· also runs on 1 platform

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Severity
HIGH7.8
Exploit prediction
EPSS 7%
SSVC
No known exploit

Description

Git GUI is a convenient graphical tool that comes with Git for Windows. Its target audience is users who are uncomfortable with using Git on the command-line. Git GUI has a function to clone repositories. Immediately after the local clone is available, Git GUI will automatically post-process it, among other things running a spell checker called `aspell.exe` if it was found. Git GUI is implemented as a Tcl/Tk script. Due to the unfortunate design of Tcl on Windows, the search path when looking for an executable _always includes the current directory_. Therefore, malicious repositories can ship with an `aspell.exe` in their top-level directory which is executed by Git GUI without giving the user a chance to inspect it first, i.e. running untrusted code. This issue has been addressed in version 2.39.1. Users are advised to upgrade. Users unable to upgrade should avoid using Git GUI for cloning. If that is not a viable option, at least avoid cloning from untrusted sources.

Affected

Our own answer: ranges merged, affected separated from platform-only, with confidence and review flags.

Git· Git Scm
95%
v < 2.39.1
Affected range stops below 2.39.1, so it looks safe — our inference, not a vendor statement
microsoft-windows (environment)
Git· Gitforwindows
60%
v < 2.39.1
Affected range stops below 2.39.1, so it looks safe — our inference, not a vendor statement

Runs on — not affected

The affected product only carries this flaw when running on these platforms. The platforms themselves are not vulnerable.

References (4)

x_refsource_MISCPatchThird Party Advisory
Source: [email protected]
https://github.com/git-for-windows/git/commit/7360767e8dfc1895a932324079f7d45d7791d39f
x_refsource_MISCPatchThird Party Advisory
Source: [email protected]
https://github.com/git-for-windows/git/pull/4219
x_refsource_CONFIRMPatchThird Party Advisory
Source: [email protected]
https://github.com/git-for-windows/git/security/advisories/GHSA-v4px-mx59-w99c
x_refsource_MISCThird Party Advisory
Source: [email protected]
https://www.tcl.tk/man/tcl8.6/TclCmd/exec.html#M23

SSVC — Action Prioritization

SSVCNo known exploitNot automatableTotal impact

SSVC signals action urgency (what to patch first), separate from CVSS which measures severity.

CVSS

7.8HIGH[email protected]
Attack Vector
LOCAL
Complexity
LOW
Privileges
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality
HIGH
Integrity
HIGH
Availability
HIGH
Vector?

Quick Info

StatusMODIFIED
CWE
CWE-426

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