---
id: MAL-2026-17877
title: Malicious code in saeka (PyPI)
summary: Malicious code in saeka (PyPI)
severity: critical
exploited: true
vendor: saeka
product: saeka
ecosystem: pip
affected:
  - saeka
published: '2026-10-14'
updated: '2026-10-15'
sourceUpdated: '2026-10-15T04:30:03.629643339Z'
source: OSV
sourceUrl: 'https://osv.dev/vulnerability/MAL-2026-17877'
references:
  - url: 'https://bad-packages.kam193.eu/pypi/package/saeka'
  - url: 'https://pypi.org/project/saeka/'
  - url: >-
      https://files.pythonhosted.org/packages/1d/ac/bf3712526f199c2bea2dbbddbbfb5106270ff8a9d595fd22c5eee12d1734/saeka-8.0.tar.gz
  - url: >-
      https://files.pythonhosted.org/packages/b6/a2/027a3e45840b578d632543c55abcb10deb5035e962a0c5ff07f3827180f0/saeka-15.0.tar.gz
tags:
  - osv
  - pip
  - malware
ingestedAt: '2026-10-15T11:47:08.221Z'
---

## Overview

When a user invokes the card-checking feature, saeka sends the supplied card number, expiration month and year, and CVV as a single value to https://uncoder.eu.org/cc-checker/api.php using an HTTP POST. The package description does not disclose this external recipient or the transfer of complete card credentials. Versions 8.0 through 15.0 listed below contain this behavior. The request requires use of the checking feature; installation or import alone does not trigger it. Version 15.0 also includes bulk card checking and a Shopify checkout flow. The recipient's ownership, retention of submitted data, and any actual unauthorized transactions have not been established.

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

## Source: kam193 (67507c9821e48c6f8284a142ae4788a9624ea608f782bf254573dae4936e7a04)
The package is a mass credit card checker: it checks if credit card data are real and active by abusing real online retail services.


---

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


Campaign: 2026-10-saeka


Reasons (based on the campaign):


 - abusing-3rd-api


## Affected packages

- `saeka`

## Remediation

Refer to the advisory for the patched release.