{"id":"MAL-2026-18122","title":"Malicious code in moveworks-capi-starter (PyPI)","summary":"Malicious code in moveworks-capi-starter (PyPI)","severity":"critical","exploited":true,"vendor":"moveworks-capi-starter","product":"moveworks-capi-starter","ecosystem":"pip","affected":["moveworks-capi-starter"],"published":"2026-10-21","updated":"2026-10-29","sourceUpdated":"2026-10-29T14:30:32.948761491Z","source":"OSV","sourceUrl":"https://osv.dev/vulnerability/MAL-2026-18122","references":[{"url":"https://bad-packages.kam193.eu/pypi/package/moveworks-capi-starter"},{"url":"https://pypi.org/project/moveworks-capi-starter/0.2.0/"},{"url":"https://pypi.org/project/moveworks-capi-starter/0.0.0/"}],"tags":["osv","pip","malware"],"ingestedAt":"2026-10-22T11:56:43.864Z","slug":"MAL-2026-18122","body":"## Overview\n\n\n---\n_-= Per source details. Do not edit below this line.=-_\n\n## Source: amazon-inspector (82a1f2ebbd0f8423c7e02c1a9b0571cec02bd6d343b88583f6a85dd06a056a99)\nsetup.py overrides the install command to collect the installer's hostname and resolved local IP address and POST them as JSON to the hardcoded URL https://webhook.site/17a7df2e-3d56-4c5a-b7a9-9a95fe58a533 during `pip install`, tagged with the package name and version. The beacon fires unconditionally at install time with no user disclosure or opt-out, and the package itself provides no documented functionality — the shipped code is a proof-of-concept beacon with placeholder author metadata. The exfiltrated data is limited to host identifiers (hostname, IP) rather than credentials, but the install-time network callback to a third-party collector enables correlation of installations with the operator of the webhook endpoint.\n\n## Source: kam193 (2cd8f99409a87f01743f65f381fefa800176a29d47d6119743ae2bd0ce1f7583)\nInstalling the package or importing the module exfiltrates basic information about the host, and the package has no other purpose.\n\n\n---\n\nCategory: PROBABLY_PENTEST - Packages looking like typical pentest packages, but also anything that looks like testing, exploring pre-prepared kits, research & co, with clearly low-harm possibilities.\n\n\nCampaign: GENERIC-standard-pypi-install-pentest\n\n\nReasons (based on the campaign):\n\n\n - The package contains code to exfiltrate basic data from the system, like IP or username. It has a limited risk.\n\n\n - The package overrides the install command in setup.py to execute malicious code during installation.\n\n\n## Affected packages\n\n- `moveworks-capi-starter`\n\n## Remediation\n\nRefer to the advisory for the patched release.","depth":"abyssal","depthScore":70,"depthScoreParts":{"impact":52.3,"likelihood":0,"exploitation":18,"ransomware":0},"changes":[]}