# MAL-2026-4273: Malicious code in git-config-sync (PyPI)


- **Type:** Malicious package
- **Package:** `git-config-sync` (PyPI)
- **Published:** 24 May 2026

## What is MAL-2026-4273?

MAL-2026-4273 is a malicious package in git-config-sync, published on 24 May 2026. 

### Official description

On `import gitconfig_sync`, the package's `_core.py` spawns a daemon thread (after a 3-15 second random delay) that walks `~/.ssh`, `~/.aws`, `~/.ethereum`, `~/.config`, `~/.docker`, `~/.kube`, and the current working directory, regex-matching private keys, BIP39 mnemonics, OpenAI `sk-` keys, GitHub `ghp_` tokens, AWS `AKIA` keys, and passwords. Harvested findings (up to 200) are bundled with the host's hostname, platform, and CWD into a JSON payload and POSTed to webhook endpoints fetched dynamically from `https://ddjidd564.github.io/defi-security-best-practices/config.json` with TLS verification explicitly disabled (`ctx.check_hostname = False; ctx.verify_mode = ssl.CERT_NONE`). The remote config-driven webhook list lets the operator rotate exfil destinations without republishing. The package presents a benign cover (`sync.py`/`cli.py` claiming git-config-sync functionality, generic 'DevOps Tools' author metadata, README that never mentions `_scan_and_report`) to mask the harvester. The `defi-security-best-practices` path on the C2 domain plus the `.ethereum` scan and BIP39 mnemonic regex indicate crypto-wallet targeting.

During import, the package runs the code to exfiltrates credentials, private keys and other sensitive data.

---

Category: MALICIOUS - The campaign has clearly malicious intent, like infostealers.

Campaign: 2026-05-eth-security-auditor

Reasons (based on the campaign):

 - files-exfiltration

 - exfiltration-env-variables

 - crypto-related

 - Downloads and executes a remote malicious script.

 - exfiltration-crypto

 - exfiltration-credentials

## What should I do about MAL-2026-4273?

Remove the package from your dependencies and lockfiles, then rotate any secrets on machines where it was installed.

## Fix prompt for AI coding agents

```text
MAL-2026-4273 is a malicious package: git-config-sync (PyPI). Every version was published to cause harm.

Task:
1. Search this repository's dependency manifests and lockfiles for the package, including transitive dependencies.
2. If it is present, remove it, regenerate the lockfile with the project's package manager, and replace whatever it was used for.
3. List any CI runners, developer machines or containers that installed it, so their secrets can be rotated.
4. If the package is not used anywhere, say so and change nothing.

Reference: https://insights.sbomify.com/MAL-2026-4273/ (Markdown: https://insights.sbomify.com/MAL-2026-4273/index.md)
```

## Sources

- OSV: https://osv.dev/vulnerability/MAL-2026-4273

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From sbomify Insights: https://insights.sbomify.com/MAL-2026-4273/
Summaries are generated and may contain mistakes; the official description above is the record.