{"id":"MAL-2026-441","title":"Malicious code in spellcheckpy (PyPI)","summary":"Malicious code in spellcheckpy (PyPI)","severity":"critical","exploited":true,"vendor":"spellcheckpy","product":"spellcheckpy","ecosystem":"pip","affected":["spellcheckpy"],"published":"2026-01-21","updated":"2026-10-30","sourceUpdated":"2026-10-30T09:45:04.106314083Z","source":"OSV","sourceUrl":"https://osv.dev/vulnerability/MAL-2026-441","references":[{"url":"https://helixguard.ai/blog/malicious-spellcheckers-2025-11-19"},{"url":"https://bad-packages.kam193.eu/pypi/package/spellcheckpy"},{"url":"https://www.aikido.dev/blog/malicious-pypi-packages-spellcheckpy-and-spellcheckerpy-deliver-python-rat"}],"tags":["osv","pip","malware"],"ingestedAt":"2026-10-30T19:05:36.413Z","slug":"MAL-2026-441","body":"## Overview\n\n\n---\n_-= Per source details. Do not edit below this line.=-_\n\n## Source: kam193 (063d67bbc510966bb83b63d1ba79a8279cf212b9028005800d6f2f99534eec46)\nPackages contain hidden code that is effectively run during importing or using the library, and downloads second stage code. Then, a process running in background periodically connects to a remote host and waits for next code to execute\n\n\n---\n\nCategory: MALICIOUS - The campaign has clearly malicious intent, like infostealers.\n\n\nCampaign: 2025-11-spellcheckers\n\n\nReasons (based on the campaign):\n\n\n - obfuscation\n\n\n - Downloads and executes a remote malicious script.\n\n\n - The package contains code to execute remote commands (probably limited to a specific set) on the victim's machine.\n\n\n## Affected packages\n\n- `spellcheckpy`\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":[]}