{"id":"MAL-2026-18188","kind":"package","aliases":["MAL-2026-18188"],"related":[],"title":"Malicious code in 1h1 (PyPI)","description":"---\n_-= Per source details. Do not edit below this line.=-_\n\n## Source: kam193 (04938e0ebf8781fb6c986fda09db9f4a60c240eb6dc79ab33e6faf7a5589b353)\nDuring installation, package downloads and executes malware.\n\n\n---\n\nCategory: MALICIOUS - The campaign has clearly malicious intent, like infostealers.\n\n\nCampaign: 2026-10-semvver\n\n\nReasons (based on the campaign):\n\n\n - Downloads and executes a remote executable.\n\n\n - malware\n\n\n - typosquatting","summary":null,"severity":"critical","cvss":null,"epss":null,"exploited":false,"exploited_at":null,"products":[{"name":"1h1","fixed":[],"affected":"= 1.0.0","ecosystem":"pypi"}],"ecosystems":["pypi"],"tags":["malicious","package"],"not_affected_if":[],"how_to_check":null,"fix":null,"status":"open","published_at":"2026-10-22T13:03:48+00:00","first_seen_at":"2026-10-26T20:52:02+00:00","triaged_at":"2026-10-26T20:57:54+00:00","updated_at":"2026-10-26T21:05:48+00:00","category":"package","confidence":null,"triage":null,"analyst_status":null,"analyst_note":null,"search":"'-10':47C '-18188':8A,11A '-2026':7A,10A '04938e0':26C '1h1':4A,12A '2026':46C 'base':50C 'campaign':38C,45C,53C 'categori':35C 'clear':40C 'code':2A 'detail':17C 'download':31C,54C 'ebf8781fb6c986fda09db9f4a60c240eb6dc79ab33e6faf7a5589b353':27C 'edit':20C 'execut':33C,56C,59C 'infosteal':44C 'instal':29C 'intent':42C 'kam193':25C 'like':43C 'line':23C 'mal':6A,9A 'malici':1A,13B,36C,41C 'malwar':34C,60C 'packag':14B,30C 'per':15C 'pypi':5A 'reason':49C 'remot':58C 'semvver':48C 'sourc':16C,24C 'typosquat':61C","nicknames":[],"mitigations":[],"who_affected":null,"tier":"B","verified":{},"analyst_revisit_at":null,"first_public_at":"2026-10-22T13:03:48+00:00","kev":null,"cvss_vector":null,"cvss_by":null,"poc_count":0,"sources":[{"source":"osv-malicious","external_id":"MAL-2026-18188","url":"https://osv.dev/vulnerability/MAL-2026-18188","severity":"critical","published_at":"2026-10-22T13:03:48+00:00","modified_at":"2026-10-22T23:45:03+00:00","first_seen_at":"2026-10-26T20:52:02+00:00","fetched_at":"2026-10-26T20:52:02+00:00","note":null}],"documents":[],"notice":"Free to read at a human pace. An API with keys and an MCP server are in preparation; early access: hello@infrastack.ai"}