---
id: CVE-2026-74895
aliases:
  - PYSEC-2026-3770
  - GHSA-623h-chj7-hfx8
title: >-
  openssl_encrypt versions before 1.4.0 fail to apply sandbox restrictions in
  the default process isolation mode for plugin execution. Atta…
summary: >-
  openssl_encrypt versions before 1.4.0 fail to apply sandbox restrictions in
  the default process isolation mode for plugin execution. Attackers can execute
  malicious plugins with unrestricted access to the filesystem, network,
  subprocess …
severity: none
vendor: openssl-encrypt
product: openssl-encrypt
ecosystem: pip
affected:
  - openssl-encrypt < 1.4.0
patched:
  - openssl-encrypt 1.4.0
published: '2026-08-17'
updated: '2026-09-02'
source: OSV
sourceUrl: 'https://osv.dev/vulnerability/PYSEC-2026-3770'
references:
  - url: >-
      https://github.com/jahlives/openssl_encrypt/security/advisories/GHSA-623h-chj7-hfx8
  - url: >-
      https://www.vulncheck.com/advisories/openssl-encrypt-before-plugin-sandbox-bypass-via-process-isolation
tags:
  - osv
  - pip
epss: 0.00679
epssPercentile: 0.50292
ingestedAt: '2026-09-02T19:31:25.824Z'
---

## Overview

openssl_encrypt versions before 1.4.0 fail to apply sandbox restrictions in the default process isolation mode for plugin execution. Attackers can execute malicious plugins with unrestricted access to the filesystem, network, subprocess execution, and all Python modules.

## Affected packages

- `openssl-encrypt < 1.4.0`

## Remediation

Upgrade to a patched release:

- `openssl-encrypt 1.4.0`