PYSEC-2026-1075
PYSEC-2026-1075 · Malicious code in tiktoken-mcp (PyPI)
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Part of the "Hades" wave of the Shai-Hulud supply-chain campaign. On 2026-06-08, malicious phantom releases of tiktoken-mcp were published to PyPI using stolen credentials. The package executes a bundled JavaScript payload (via the Bun runtime) on import that harvests and exfiltrates credentials and attempts self-propagation. This entry is a summary; behavior may not be fully characterized here. See the linked references for detailed analysis and indicators of compromise.
- Veröffentlicht
- Aktualisiert
Technologie-Stack: python
Betroffene Produkte und Versionen
tiktoken-mcp PyPI
- Softwareversionen
- 0.13.1
- 0.13.2
Keine Korrektur veröffentlicht
Originalquellen
- https://inspector.pypi.io/project/tiktoken-mcp/0.13.2/packages/5c/58/895febe9c7cc34d3e4d64699ec40ac0b378392db3cfda3c93b7af27da95d/tiktoken_mcp-0.13.2-py3-none-any.whl/tiktoken-setup.pth
- https://www.endorlabs.com/learn/shai-hulud-hades-wave-hits-six-pypi-bioinformatics-packages
- https://www.stepsecurity.io/blog/the-hades-campaign-pypi-packages
- https://osv.dev/vulnerability/PYSEC-2026-1075