---
id: CVE-2012-4456
aliases:
  - GHSA-mf98-r2gf-2x3w
  - PYSEC-2026-832
title: OpenStack Keystone Improper Authentication vulnerability
summary: OpenStack Keystone Improper Authentication vulnerability
severity: high
vendor: keystone
product: keystone
ecosystem: pip
affected:
  - 'keystone >= 2012.1, < 2012.1.2'
patched:
  - keystone 2012.1.2
published: '2022-05-14'
updated: '2026-07-07'
source: OSV
sourceUrl: 'https://osv.dev/vulnerability/GHSA-mf98-r2gf-2x3w'
references:
  - url: 'https://nvd.nist.gov/vuln/detail/CVE-2012-4456'
  - url: >-
      https://github.com/openstack/keystone/commit/14b136aed9d988f5a8f3e699bd4577c9b874d6c1
  - url: >-
      https://github.com/openstack/keystone/commit/1d146f5c32e58a73a677d308370f147a3271c2cb
  - url: >-
      https://github.com/openstack/keystone/commit/24df3adb3f50cbb5ada411bc67aba8a781e6a431
  - url: >-
      https://github.com/openstack/keystone/commit/868054992faa45d6f42d822bf1588cb88d7c9ccb
  - url: 'https://access.redhat.com/errata/RHSA-2012:1378'
  - url: 'https://access.redhat.com/security/cve/CVE-2012-4456'
  - url: 'https://bugs.launchpad.net/keystone/+bug/1006815'
  - url: 'https://bugs.launchpad.net/keystone/+bug/1006822'
  - url: 'https://bugzilla.redhat.com/show_bug.cgi?id=861179'
  - url: 'https://exchange.xforce.ibmcloud.com/vulnerabilities/78944'
  - url: 'https://github.com/openstack/keystone'
  - url: 'https://lists.launchpad.net/openstack/msg17034.html'
  - url: >-
      https://web.archive.org/web/20121114024512/http://www.securityfocus.com/bid/55716
  - url: 'http://www.openwall.com/lists/oss-security/2012/09/28/5'
tags:
  - osv
  - pip
epss: 0.03998
epssPercentile: 0.90097
ingestedAt: '2026-07-08T18:25:51.205Z'
---

## Overview

The (1) OS-KSADM/services and (2) tenant APIs in OpenStack Keystone Essex before 2012.1.2 and Folsom before folsom-2 do not properly validate X-Auth-Token, which allow remote attackers to read the roles for an arbitrary user or get, create, or delete arbitrary services.

## Affected packages

- `keystone >= 2012.1, < 2012.1.2`

## Remediation

Upgrade to a patched release:

- `keystone 2012.1.2`