CVE-2012-4457

OpenStack Keystone Essex before 2012.1.2 and Folsom before folsom-3 does not properly handle authorization tokens for disabled tenants, which allows remote authenticated users to access the tenant's resources by requesting a token for the tenant.

Published: 2012-10-09 Last update: 2026-06-16 Assigner: [email protected] Source: [email protected]
NVD Status：Modified，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2012-4457 is rated Moderate Risk (45.9/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 2.27%). EPSS rose +1.71% over the last day, indicating growing attacker interest. Review affected assets and schedule remediation.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2012-4457

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-06-15 0.56% 2.27% +1.71%
2 2025-06-10 0.41% 0.56% +0.15%
3 2025-03-30 — 0.41% —

Full EPSS history (10 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2012-4457

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
4.0 2.0 MEDIUM
AV:N/AC:L/Au:S/C:P/I:N/A:N Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:L)
Exploitation conditions are straightforward and predictable.
Authentication (AU:S)
A single authentication is required.
Confidentiality impact (C:P)
Partial confidentiality impact.
Integrity impact (I:N)
No integrity impact.
Availability impact (A:N)
No availability impact.
 8.0 2.9 [email protected]

Weakness enumeration for CVE-2012-4457

GitHub Security Advisory for CVE-2012-4457

GHSA-x8h4-xf47-pqc3 · Severity: medium · Ecosystem: pip — OpenStack Keystone Token authorization for a user in a disabled tenant is allowed

OS Trackers for CVE-2012-4457

vendor priority summary link
debian not yet assigned CVE-2012-4457 not yet assigned priority: Debian including 1 source packages (keystone), 5 status rows across 5 suites (bookworm, bullseye, forky, sid, trixie): resolved 5. https://security-tracker.debian.org/tracker/CVE-2012-4457
redhat medium — https://access.redhat.com/security/cve/CVE-2012-4457
ubuntu medium CVE-2012-4457 medium priority: Ubuntu including 1 source packages (keystone), 7 status rows across 7 suites (hardy, lucid, natty, oneiric, precise, quantal, upstream): DNE 3, released 2, ignored 1, not-affected 1. https://ubuntu.com/security/CVE-2012-4457

Affected software / configurations for CVE-2012-4457

Vendor Product Version Raw CPE
openstack keystone >= 2012.1, < 2012.1.2 cpe:2.3:a:openstack:keystone:*:*:*:*:*:*:*:*
openstack keystone 2012.2 cpe:2.3:a:openstack:keystone:2012.2:milestone1:*:*:*:*:*:*
openstack keystone 2012.2 cpe:2.3:a:openstack:keystone:2012.2:milestone2:*:*:*:*:*:*

References for CVE-2012-4457

cvelogic Threat Intelligence