---
id: "MAL-2026-18658"
kind: "package"
aliases: ["MAL-2026-18658"]
title: "Malicious code in rcp-ndcg (PyPI)"
severity: "critical"
cvss: null
epss: null
exploited: false
status: "open"
category: "package"
products: [{"name": "rcp-ndcg", "fixed": [], "affected": "= 9999.0.0", "ecosystem": "pypi"}]
ecosystems: ["pypi"]
tags: ["malicious", "package"]
not_affected_if: []
published_at: "2026-11-05T03:31:09+00:00"
first_seen_at: "2026-11-05T04:01:34+00:00"
updated_at: "2026-11-05T04:04:36+00:00"
sources: [{"source": "osv-malicious", "url": "https://osv.dev/vulnerability/MAL-2026-18658", "first_seen_at": "2026-11-05T04:01:34+00:00"}]
exploit_sources: []
---

# Malicious code in rcp-ndcg (PyPI)

## Affected

- pypi:rcp-ndcg affected = 9999.0.0 fixed no fixed version listed

## Timeline

- 2026-11-05T04:01:34+00:00 osv-malicious https://osv.dev/vulnerability/MAL-2026-18658

## From the sources

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

## Source: ossf-package-analysis (fc78014eaba6dbdc0a485f1954874cbfa65b71ffcda55b1b9337807004e42a2f)
The OpenSSF Package Analysis project identified 'rcp-ndcg' @ 9999.0.0 (pypi) as malicious.

It is considered malicious because:

- The package communicates with a domain associated with malicious activity.

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