MAL-2026-16366 Malicious code in pullgetsage (PyPI)
- Package
- pullgetsage
- Registry
- PyPI
What is MAL-2026-16366?
MAL-2026-16366 is a malicious package in pullgetsage, published on 21 Sep 2026.
Official description
On import, init.py archives the installer's Telegram Desktop tdata directory (%APPDATA%/Telegram Desktop/tdata) into a zip named 'aiosendletter_logs' and POSTs it to a hardcoded Cloudflare Workers endpoint at https://red-poetry-6b6f.martinmcflywork.workers.dev/. The tdata directory holds Telegram session keys; uploading it enables full account takeover of the installer's Telegram account. The behavior is disguised with misleading identifiers ('aiosendletter_logs', 'aioletter initialized') and empty except-block prints that silently swallow errors, and the stated package purpose ('a library filled with books') is unrelated to Telegram.
Package hides code to exfiltrate files. Most releases target unclear files, but some reveal the goal to exfiltrate sensitive Telegram data.
Category: MALICIOUS - The campaign has clearly malicious intent, like infostealers.
Campaign: 2026-09-aiosendletter
Reasons (based on the campaign):
files-exfiltration
target:telegram
What should I do about MAL-2026-16366?
Remove the package from your dependencies and lockfiles, then rotate any secrets on machines where it was installed.