Malicious code in hello-world-test-mh3 (PyPI)
Package is a trivial hello-world test artifact. setup.py contains an exec(base64.b64decode(...)) call at install time, but the decoded payload is a single print() statement with no network, filesystem, or credential side effects. src/hello_world/__init__.py defines a _remote_update() function whose urlopen+exec branch is guarded by a constant _SIMULATE_ONLY=True, making the network-fetch-and-exec branch statically unreachable; the reachable branch only execs a local print string. No outbound network occurs, no installer secrets are read, and no attacker-controlled code or destination is referenced. The exec+base64 and import-time fetch-and-exec shapes are present as structural patterns only, with no installer-side harm.
MAL-2026-10908 is recorded against 1 package.
Published on 20 July 2026 and last revised on 5 August 2026. No public exploit is currently recorded for this entry. Record sourced from OSV.
Details
Affected Packages
| Software | From version | Fixed in |
|---|---|---|
| hello-world-test-mh3 | — | — |
References
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