{"id":"PYSEC-2026-589","summary":"Malicious code in executor-engine (PyPI)","details":"Part of the \"Hades\" wave of the Shai-Hulud supply-chain campaign. On 2026-06-08,\nmalicious phantom releases of executor-engine were published to PyPI using stolen\ncredentials. The package executes a bundled JavaScript payload (via the Bun\nruntime) on import that harvests and exfiltrates credentials and attempts\nself-propagation. This entry is a summary; behavior may not be fully\ncharacterized here. See the linked references for detailed analysis and\nindicators of compromise.\n","aliases":["MAL-2026-5298"],"modified":"2026-07-01T12:45:04.750136240Z","published":"2026-06-30T20:06:13Z","references":[{"type":"EVIDENCE","url":"https://inspector.pypi.io/project/executor-engine/0.3.5/packages/e8/c5/ddb0a3baebdfd3a3a3e3f73dd1f851e94ee263a07720433adc68dc442058/executor_engine-0.3.5-py3-none-any.whl//executor_engine-setup.pth"},{"type":"ARTICLE","url":"https://www.endorlabs.com/learn/shai-hulud-hades-wave-hits-six-pypi-bioinformatics-packages"},{"type":"ARTICLE","url":"https://www.stepsecurity.io/blog/the-hades-campaign-pypi-packages"}],"affected":[{"package":{"name":"executor-engine","ecosystem":"PyPI","purl":"pkg:pypi/executor-engine"},"versions":["0.3.4","0.3.5"],"database_specific":{"source":"https://github.com/pypa/advisory-database/blob/main/vulns/executor-engine/PYSEC-2026-589.yaml"}}],"schema_version":"1.7.5"}