---
id: "MAL-2026-3638"
kind: "package"
aliases: ["MAL-2026-3638"]
title: "Malicious code in openai-spellcheckers (PyPI)"
severity: "critical"
cvss: null
epss: null
exploited: false
status: "open"
category: "package"
products: [{"name": "openai-spellcheckers", "fixed": [], "affected": "= 1.0.0", "ecosystem": "pypi"}]
ecosystems: ["pypi"]
tags: ["malicious", "package"]
not_affected_if: []
published_at: "2026-05-13T05:52:24+00:00"
first_seen_at: "2026-10-30T10:28:28+00:00"
updated_at: "2026-10-30T10:28:57+00:00"
sources: [{"source": "osv-malicious", "url": "https://osv.dev/vulnerability/MAL-2026-3638", "first_seen_at": "2026-10-30T10:28:28+00:00"}]
---

# Malicious code in openai-spellcheckers (PyPI)

## Affected

- pypi:openai-spellcheckers affected = 1.0.0 fixed ?

## Timeline

- 2026-10-30T10:28:28+00:00 osv-malicious https://osv.dev/vulnerability/MAL-2026-3638

## From the sources

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

## Source: kam193 (195e6ac284c1a3e97b7683250a5514ed89d903819d2a3c97987782d4725e0e9f)
Packages 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


---

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


Campaign: 2025-11-spellcheckers


Reasons (based on the campaign):


 - obfuscation


 - Downloads and executes a remote malicious script.


 - The package contains code to execute remote commands (probably limited to a specific set) on the victim's machine.

---

_Free to read at a human pace. An API with keys and an MCP server are in preparation; early access: hello@infrastack.ai_