CVE-2012-3426

Exp

OpenStack Keystone before 2012.1.1, as used in OpenStack Folsom before Folsom-1 and OpenStack Essex, does not properly implement token expiration, which allows remote authenticated users to bypass intended authorization restrictions by (1) creating new tokens through token chaining, (2) leveraging possession of a token for a disabled user account, or (3) leveraging possession of a token for an account with a changed password.

Published: 2012-07-31 Last update: 2026-06-16 Assigner: [email protected] Source: [email protected]

Conclusion & alert: CVE-2012-3426 is rated High Exploit Risk (64.5/100): CVSS Medium severity, with medium exploitation likelihood (EPSS 2.27%). Core evidence: 2 public exploit reference(s) are indexed (Exploit-DB). EPSS rose +1.70% over the last day, indicating growing attacker interest. Mandatory action: Public exploits are available—assess exposure, apply mitigations, and prioritize patching.

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

Public exploit references (Exploit-DB) for CVE-2012-3426

EDB-ID Source Kind Published Link
nvd_ref exploit_tag Exploit-DB ↗
nvd_ref exploit_tag Exploit-DB ↗

Exploit prediction scoring system (EPSS) score for CVE-2012-3426

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% +1.70%
2 2026-02-14 0.21% 0.56% +0.35%
3 2025-03-30 0.21%

Full EPSS history (7 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2012-3426

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
4.9 2.0 MEDIUM
AV:N/AC:M/Au:S/C:P/I:P/A:N Click to expand
Access vector (AV:N)
Can be exploited remotely over network reachability.
Access complexity (AC:M)
Exploitation needs some favorable conditions, but not exceptional ones.
Authentication (AU:S)
A single authentication is required.
Confidentiality impact (C:P)
Partial confidentiality impact.
Integrity impact (I:P)
Partial integrity impact.
Availability impact (A:N)
No availability impact.
6.8 4.9 [email protected]

Weakness enumeration for CVE-2012-3426

GitHub Security Advisory for CVE-2012-3426

GHSA-xp97-6w7r-4cjc · Severity: medium · Ecosystem: pip — OpenStack Keystone token expiration issues

OS Trackers for CVE-2012-3426

vendor priority summary link
debian not yet assigned CVE-2012-3426 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-2012-3426
ubuntu low CVE-2012-3426 low priority: Ubuntu including 1 source packages (keystone), 7 status rows across 7 suites (hardy, lucid, natty, oneiric, precise, quantal, upstream): DNE 3, ignored 1, needs-triage 1, not-affected 1, released 1. https://ubuntu.com/security/CVE-2012-3426

Affected software / configurations for CVE-2012-3426

Vendor Product Version Raw CPE
openstack essex cpe:2.3:a:openstack:essex:*:*:*:*:*:*:*:*
openstack horizon folsom-1 cpe:2.3:a:openstack:horizon:folsom-1:*:*:*:*:*:*:*
openstack keystone 2012.1 cpe:2.3:a:openstack:keystone:2012.1:*:*:*:*:*:*:*
openstack keystone 2012.1.1 cpe:2.3:a:openstack:keystone:2012.1.1:*:*:*:*:*:*:*

References for CVE-2012-3426

URL Tags
http://github.com/openstack/keystone/commit/29e74e73a6e51cffc0371b32354558391826a4aa
http://github.com/openstack/keystone/commit/375838cfceb88cacc312ff6564e64eb18ee6a355 Patch
http://github.com/openstack/keystone/commit/628149b3dc6b58b91fd08e6ca8d91c728ccb8626 Exploit Patch
http://github.com/openstack/keystone/commit/a67b24878a6156eab17b9098fa649f0279256f5d
http://github.com/openstack/keystone/commit/d9600434da14976463a0bd03abd8e0309f0db454
http://github.com/openstack/keystone/commit/ea03d05ed5de0c015042876100d37a6a14bf56de Exploit Patch
http://secunia.com/advisories/50045
http://secunia.com/advisories/50494
http://www.openwall.com/lists/oss-security/2012/07/27/4 Patch
http://www.ubuntu.com/usn/USN-1552-1
https://bugs.launchpad.net/keystone/+bug/996595
https://bugs.launchpad.net/keystone/+bug/997194
https://bugs.launchpad.net/keystone/+bug/998185
https://launchpad.net/keystone/essex/2012.1.1/+download/keystone-2012.1.1.tar.gz Patch
cvelogic Threat Intelligence