---
id: CVE-2025-63675
aliases:
  - GHSA-97w9-v595-3h5q
  - PYSEC-2026-1282
title: 'cryptidy allows code execution via untrusted data due to pickle.loads '
summary: 'cryptidy allows code execution via untrusted data due to pickle.loads '
severity: medium
cvss: 6.9
cvssVector: 'CVSS:3.1/AV:L/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:L'
vendor: cryptidy
product: cryptidy
ecosystem: pip
affected:
  - cryptidy <= 1.2.4
published: '2025-10-31'
updated: '2026-07-07'
source: OSV
sourceUrl: 'https://osv.dev/vulnerability/GHSA-97w9-v595-3h5q'
references:
  - url: 'https://nvd.nist.gov/vuln/detail/CVE-2025-63675'
  - url: 'https://github.com/javiermorales36/cryptidy-analysis'
  - url: 'https://github.com/netinvent/cryptidy'
  - url: >-
      https://github.com/netinvent/cryptidy/blob/cebc9ffd54cc20679d15a1a43ca9a5da645b0c58/cryptidy/symmetric_encryption.py#L220-L238
tags:
  - osv
  - pip
epss: 0.00236
epssPercentile: 0.12982
ingestedAt: '2026-07-08T18:25:47.786Z'
---

## Overview

cryptidy through 1.2.4 allows code execution via untrusted data because pickle.loads is used. This occurs in aes_decrypt_message in symmetric_encryption.py.

## Affected packages

- `cryptidy <= 1.2.4`

## Remediation

Refer to the advisory for the patched release.