---
id: CVE-2026-81686
aliases:
  - PYSEC-2026-3794
  - GHSA-7fhx-8rmv-qjj3
title: >-
  openssl_encrypt 1.4.x before 1.4.9 contains an optional D-Bus crypto service
  whose org.freedesktop.DBus.Properties.Set method performs ne…
summary: >-
  openssl_encrypt 1.4.x before 1.4.9 contains an optional D-Bus crypto service
  whose org.freedesktop.DBus.Properties.Set method performs neither a polkit
  authorization check nor value validation. Any local user on the system bus can
  call S…
severity: medium
cvss: 5.5
cvssVector: 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H'
vendor: openssl-encrypt
product: openssl-encrypt
ecosystem: pip
affected:
  - openssl-encrypt < 1.4.9
patched:
  - openssl-encrypt 1.4.9
published: '2026-08-27'
updated: '2026-09-03'
source: OSV
sourceUrl: 'https://osv.dev/vulnerability/PYSEC-2026-3794'
references:
  - url: >-
      https://github.com/jahlives/openssl_encrypt/security/advisories/GHSA-7fhx-8rmv-qjj3
  - url: >-
      https://www.vulncheck.com/advisories/openssl-encrypt-before-1.4.9-d-bus-properties-authorization-bypass
tags:
  - osv
  - pip
epss: 0.00139
epssPercentile: 0.02648
ingestedAt: '2026-09-03T19:32:12.069Z'
---

## Overview

openssl_encrypt 1.4.x before 1.4.9 contains an optional D-Bus crypto service whose org.freedesktop.DBus.Properties.Set method performs neither a polkit authorization check nor value validation. Any local user on the system bus can call Set without authorization and set MaxConcurrentOperations (to 0/negative, causing the concurrency gate to refuse all subsequent operations, or to a huge value removing the limit) or the unbounded DefaultTimeout, resulting in a persistent denial of service of the root daemon. The D-Bus service exists only on the 1.4.x line and was removed in 1.5.x.

## Affected packages

- `openssl-encrypt < 1.4.9`

## Remediation

Upgrade to a patched release:

- `openssl-encrypt 1.4.9`