---
id: "MAL-2026-18354"
kind: "package"
aliases: ["MAL-2026-18354"]
title: "Malicious code in trajmetrics (PyPI)"
severity: "critical"
cvss: null
epss: null
exploited: false
status: "open"
category: "package"
products: [{"name": "trajmetrics", "fixed": [], "affected": "= 0.5.3", "ecosystem": "pypi"}]
ecosystems: ["pypi"]
tags: ["malicious", "package"]
not_affected_if: []
published_at: "2026-10-27T23:47:08+00:00"
first_seen_at: "2026-10-28T01:00:03+00:00"
updated_at: "2026-10-28T01:02:49+00:00"
sources: [{"source": "osv-malicious", "url": "https://osv.dev/vulnerability/MAL-2026-18354", "first_seen_at": "2026-10-28T01:00:03+00:00"}]
---

# Malicious code in trajmetrics (PyPI)

## Affected

- pypi:trajmetrics affected = 0.5.3 fixed ?

## Timeline

- 2026-10-28T01:00:03+00:00 osv-malicious https://osv.dev/vulnerability/MAL-2026-18354

## From the sources

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

## Source: kam193 (3370d77977a536de8b2ea99267086960e8be3aea34a1efac6d975bb2bad98271)
When starting as a module, the package scans the whole system and exfiltrates selected files by type. If following the README instruction, it starts a background job constantly monitoring the system and exfiltrating files as soon as they change.


---

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


Campaign: 2026-10-trajmetrics


Reasons (based on the campaign):


 - native-extension


 - files-exfiltration

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