{"id":"PYSEC-2026-1074","aliases":["MAL-2026-5325"],"title":"Malicious code in ray-mcp-server (PyPI)","summary":"Malicious code in ray-mcp-server (PyPI)","severity":"none","vendor":"ray-mcp-server","product":"ray-mcp-server","ecosystem":"pip","affected":["ray-mcp-server"],"published":"2026-07-07","updated":"2026-07-07","source":"OSV","sourceUrl":"https://osv.dev/vulnerability/PYSEC-2026-1074","references":[{"url":"https://inspector.pypi.io/project/ray-mcp-server/0.2.1/packages/40/35/d09e9a3b7802bbbae86b8b9a207b9687101dcb0534e35e3cb35d0383a4de/ray_mcp_server-0.2.1-py3-none-any.whl/ray_mcp_server-setup.pth"},{"url":"https://www.endorlabs.com/learn/shai-hulud-hades-wave-hits-six-pypi-bioinformatics-packages"},{"url":"https://www.stepsecurity.io/blog/the-hades-campaign-pypi-packages"}],"tags":["osv","pip"],"ingestedAt":"2026-07-08T18:34:40.000Z","slug":"PYSEC-2026-1074","body":"## Overview\n\nPart of the \"Hades\" wave of the Shai-Hulud supply-chain campaign. On 2026-06-08,\nmalicious phantom releases of ray-mcp-server 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\n\n## Affected packages\n\n- `ray-mcp-server`\n\n## Remediation\n\nRefer to the advisory for the patched release.","depth":"sunlit","depthScore":3,"depthScoreParts":{"impact":2.8,"likelihood":0,"exploitation":0,"ransomware":0},"changes":[]}