🛡️ CVE-2024-41956 — soft-serve

🟠 CVSS 8.1 — High ✅ No Known Exploit CWE-78 NVD
8.1
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

soft-serve vulnerable to arbitrary code execution by crafting git-lfs requests

Impact

Any servers using soft-serve server and git

Patches

>0.7.5

Workarounds

None.

References

n/a.

It is possible for a user who can commit files to a repository hosted by Soft Serve to execute arbitrary code via environment manipulation and Git.

The issue is that Soft Serve passes all environment variables given by the client to git subprocesses. This includes environment variables that control program execution, such as LD_PRELOAD.

This can be exploited to execute arbitrary code by, for example, uploading a malicious shared object file to Soft Serve via Git LFS (uploading it via LFS ensures that it is not compressed on disk and easier to work with). The file will be stored under its SHA256 hash, so it has a predictable name.

This file can then be referenced in LD_PRELOAD via a Soft Serve SSH session that causes git to be invoked. For example:

```bash

LD_PRELOAD=/.../data/lfs/1/objects/a2/b5/a2b585befededf5f95363d06d83655229e393b1b45f76d9f989a336668665a2f ssh server git-upload-pack repo

```

The example LFS file patches a shared library function called by git to execute a shell.

How this vulnerability can be exploited

This issue can be reached over the network, attack complexity is low, an attacker needs low-level privileges on the target. No user interaction is required. The scope is unchanged, so the impact stays within the vulnerable component. Rated impact: confidentiality high, integrity high, availability none.

Weakness class

CVE-2024-41956 is classified as CWE-78: OS Command Injection. Untrusted input reaches a shell command without neutralisation, so an attacker can run arbitrary operating system commands.

Affected software

CVE-2024-41956 is recorded against 2 packages.

  • github.com/charmbracelet/soft-serve
  • unknown

Timeline and source

Published on 2 August 2024 and last revised on 3 March 2026. No public exploit is currently recorded for this entry. A vendor advisory or fix has been published. Record sourced from NVD.

References

github.com (Web)
nvd.nist.gov (Advisory)
github.com (Web)
github.com (Package)
pkg.go.dev (Web)

Details

Severity HIGH
CVSS Score 8.1
CVSS Vector CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:N
CWE CWE-78
Public Exploit ✅ No
Source NVD
Published 2024-08-02
Updated 2026-08-12
Modified 2026-03-03

Affected Packages

Software From version Fixed in
github.com/charmbracelet/soft-serve — —
unknown — —

Similar Threats

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