{"id":"MAL-2026-17862","kind":"package","aliases":["MAL-2026-17862"],"related":[],"title":"Malicious code in fontcase (PyPI)","description":"---\n_-= Per source details. Do not edit below this line.=-_\n\n## Source: kam193 (9e2c4992e5295f2b094f3c7c2b2e6c2dbc8d0d9ca6242d58318e6e1b83a4255c)\nDuring import, the package downloads and executes an infostealer.\n\n\n---\n\nCategory: MALICIOUS - The campaign has clearly malicious intent, like infostealers.\n\n\nCampaign: 2026-10-fontcase\n\n\nReasons (based on the campaign):\n\n\n - infostealer\n\n\n - Downloads and executes a remote executable.\n\n\n - uses-telegram-bot\n\n\n - exfiltration-browser-data\n\n\n - exfiltration-credentials","summary":null,"severity":"critical","cvss":null,"epss":null,"exploited":false,"exploited_at":null,"products":[{"name":"fontcase","fixed":[],"affected":"= 0.1.0; = 0.1.1; = 0.1.2","ecosystem":"pypi"}],"ecosystems":["pypi"],"tags":["malicious","package"],"not_affected_if":[],"how_to_check":null,"fix":null,"status":"open","published_at":"2026-10-13T19:30:53+00:00","first_seen_at":"2026-10-26T20:51:59+00:00","triaged_at":"2026-10-26T21:06:18+00:00","updated_at":"2026-10-26T21:06:18+00:00","category":"package","confidence":null,"triage":null,"analyst_status":null,"analyst_note":null,"search":"'-10':49C '-17862':8A,11A '-2026':7A,10A '2026':48C '9e2':26C 'base':52C 'bot':66C 'browser':69C 'c4992e5295f2b094f3c7c2b2e6c2dbc8d0d9ca6242d58318e6e1b83a4255c':27C 'campaign':40C,47C,55C 'categori':37C 'clear':42C 'code':2A 'credenti':73C 'data':70C 'detail':17C 'download':32C,57C 'edit':20C 'execut':34C,59C,62C 'exfiltr':68C,72C 'exfiltration-browser-data':67C 'exfiltration-credenti':71C 'fontcas':4A,50C 'fontcase':12A 'import':29C 'infosteal':36C,46C,56C 'intent':44C 'kam193':25C 'like':45C 'line':23C 'mal':6A,9A 'malici':1A,13B,38C,43C 'packag':14B,31C 'per':15C 'pypi':5A 'reason':51C 'remot':61C 'sourc':16C,24C 'telegram':65C 'use':64C 'uses-telegram-bot':63C","nicknames":[],"mitigations":[],"who_affected":null,"tier":null,"verified":{},"analyst_revisit_at":null,"first_public_at":"2026-10-13T19:30:53+00:00","kev":null,"cvss_vector":null,"cvss_by":null,"poc_count":0,"sources":[{"source":"osv-malicious","external_id":"MAL-2026-17862","url":"https://osv.dev/vulnerability/MAL-2026-17862","severity":"critical","published_at":"2026-10-13T19:30:53+00:00","modified_at":"2026-10-13T20:30:03+00:00","first_seen_at":"2026-10-26T20:51:59+00:00","fetched_at":"2026-10-26T20:51:59+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"}