---
id: "MAL-2025-192579"
page: "https://infrastack.ai/live/MAL-2025-192579"
kind: "package"
aliases: ["MAL-2025-192579"]
title: "Malicious code in smtblib (PyPI)"
severity: "critical"
cvss: null
epss: null
exploited: false
status: "open"
category: "package"
products: [{"name": "smtblib", "fixed": [], "affected": "= 0.1.8; = 0.1.9", "ecosystem": "pypi"}]
ecosystems: ["pypi"]
tags: ["malicious", "package"]
not_affected_if: []
published_at: "2025-12-15T15:24:47+00:00"
first_seen_at: "2026-11-13T02:11:13+00:00"
updated_at: "2026-11-13T02:13:11+00:00"
sources: [{"source": "osv-malicious", "url": "https://osv.dev/vulnerability/MAL-2025-192579", "first_seen_at": "2026-11-13T02:11:13+00:00"}]
exploit_sources: []
---

# Malicious code in smtblib (PyPI)

Link for people: https://infrastack.ai/live/MAL-2025-192579 (this .md is for agents)

## Affected

- pypi:smtblib affected = 0.1.8; = 0.1.9 fixed no fixed version listed

## Timeline

- 2026-11-13T02:11:13+00:00 osv-malicious https://osv.dev/vulnerability/MAL-2025-192579

## From the sources

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_-= Per source details. Do not edit below this line.=-_

## Source: kam193 (15a295f1d98fcbbdd6a077bc3a849966ca3f73919c0d47e58948ff382481e5b6)
Malicious copy of a standard library module that during class initialization downloads and executes remote code and after that attempts to cover its tracks by overwriting itself with non-malicious code. The remote code aims to collect and exfiltrate sensitive Telegram session files.

This campaign shares infrastructure and basic methods with previous 2025-11-uzip campaign.


---

Category: MALICIOUS - The campaign has clearly malicious intent, like infostealers.


Campaign: 2025-12-smtblib


Reasons (based on the campaign):


 - Downloads and executes a remote malicious script.


 - infostealer


 - target:telegram


 - exfiltration-credentials


 - action-hidden-in-lib-usage


 - covering-tracks


 - clones-real-package


 - typosquatting

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_Free to read, with fair use of about 60 pages a minute. For higher limits or API access: sales@infrastack.ai_