---
id: CVE-2013-2255
aliases:
  - GHSA-qh2x-hpf9-cf2g
  - PYSEC-2026-656
title: >-
  OpenStack Keystone and other components vulnerable to Improper Certificate
  Validation
summary: >-
  OpenStack Keystone and other components vulnerable to Improper Certificate
  Validation
severity: medium
cvss: 5.9
cvssVector: 'CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:N'
vendor: python-keystoneclient
product: python-keystoneclient
ecosystem: pip
affected:
  - python-keystoneclient < 0.4.0
  - cinder < 7.0.0a0
  - neutron < 7.0.0a0
  - keystone < 8.0.0a0
patched:
  - python-keystoneclient 0.4.0
  - cinder 7.0.0a0
  - neutron 7.0.0a0
  - keystone 8.0.0a0
published: '2022-05-05'
updated: '2026-07-06'
source: OSV
sourceUrl: 'https://osv.dev/vulnerability/GHSA-qh2x-hpf9-cf2g'
references:
  - url: 'https://nvd.nist.gov/vuln/detail/CVE-2013-2255'
  - url: >-
      https://github.com/openstack/cinder/commit/0f9652d92e175a1f7dc3c2a37ab444b8f189375a
  - url: >-
      https://github.com/openstack/keystone/commit/5bd4c2984d329625a2a8442b316fa235dbb88a3d
  - url: >-
      https://github.com/openstack/neutron/commit/7255e056092f034daaeb4246a812900645d46911
  - url: >-
      https://github.com/openstack/python-keystoneclient/commit/20e166fd8a943ee3f91ba362a47e9c14c7cc5f4c
  - url: 'https://access.redhat.com/security/cve/cve-2013-2255'
  - url: 'https://bugs.launchpad.net/ossn/+bug/1188189'
  - url: 'https://bugzilla.redhat.com/show_bug.cgi?id=CVE-2013-2255'
  - url: 'https://bugzilla.suse.com/show_bug.cgi?id=CVE-2013-2255'
  - url: 'https://exchange.xforce.ibmcloud.com/vulnerabilities/85562'
  - url: 'https://security-tracker.debian.org/tracker/CVE-2013-2255'
  - url: >-
      https://web.archive.org/web/20200229073508/https://www.securityfocus.com/bid/61118
tags:
  - osv
  - pip
epss: 0.0097
epssPercentile: 0.59871
ingestedAt: '2026-07-08T18:25:52.418Z'
---

## Overview

HTTPSConnections in OpenStack Keystone 2013, OpenStack Compute 2013.1, and possibly other OpenStack components, fail to validate server-side SSL certificates.

## Affected packages

- `python-keystoneclient < 0.4.0`
- `cinder < 7.0.0a0`
- `neutron < 7.0.0a0`
- `keystone < 8.0.0a0`

## Remediation

Upgrade to a patched release:

- `python-keystoneclient 0.4.0`
- `cinder 7.0.0a0`
- `neutron 7.0.0a0`
- `keystone 8.0.0a0`