CVE-2014-2064

Jenkins allows attackers to determine whether a user exists

5.0 MediumPublic exploitFix available

The loadUserByUsername function in hudson/security/HudsonPrivateSecurityRealm.java in Jenkins before 1.551 and LTS before 1.532.2 allows remote attackers to determine whether a user exists via vectors related to failed login attempts.

Exploit likelihood

2.95%Down 2.8 points since Feb 4, 2022

What each source reports

NVD Score used 5.0

Record: CVE-2014-2064
CVSS 2.0: 5.0 MediumAV:N/AC:L/Au:N/C:P/I:N/A:N
Weakness: CWE-200
Updated: 2026-11-02

CVE List No score

Record: CVE-2014-2064
Updated: 2026-11-02

EUVDEUVD-2022-3451 No score

Record: EUVD-2022-3451
Updated: 2026-11-03

GitHub AdvisoriesGHSA-9vg9-x38g-9hfx No score

Jenkins allows attackers to determine whether a user exists

Record: GHSA-9vg9-x38g-9hfx
Weakness: CWE-200
Updated: 2026-11-02

OSVGHSA-9vg9-x38g-9hfx No score

Jenkins allows attackers to determine whether a user exists

Record: GHSA-9vg9-x38g-9hfx
Weakness: CWE-200
Updated: 2026-11-02

Affected products

jenkins

Affected packages

Affected packages
Package	Affected	Fixed
`org.jenkins-ci.main:jenkins-core` Maven	1.533 up to 1.551	1.551
`org.jenkins-ci.main:jenkins-core` Maven	before 1.532.2	1.532.2
`org.jenkins-ci.main:jenkins-core` Maven	1.533 up to 1.551, plus listed versions 1.5341.5351.5361.5371.538 Show 12 moreShow less 1.5391.5401.5411.5421.5431.5441.5451.5461.5471.5481.5491.550	1.551
`org.jenkins-ci.main:jenkins-core` Maven	before 1.532.2, plus listed versions 1.3961.3971.3981.3991.400 Show 45 moreShow less 1.4011.4031.4041.4051.4061.4071.4081.4091.409.11.409.21.409.31.4101.4111.4121.4131.4141.4151.4161.4171.4181.4191.4201.4211.4221.4231.4241.424.11.424.21.424.31.424.41.424.51.424.61.4251.4261.4271.4281.4291.4301.4311.4321.4331.4341.4351.4361.437	1.532.2
`jenkins` Red Hat:openshift:2.0::el6 From an advisory covering 22 CVEs	before 0:1.565.3-1.el6op	0:1.565.3-1.el6op
`jenkins-plugin-openshift` Red Hat:openshift:2.0::el6 From an advisory covering 22 CVEs	before 0:0.6.40.1-0.el6op	0:0.6.40.1-0.el6op
`openshift-origin-cartridge-jenkins` Red Hat:openshift:2.0::el6 From an advisory covering 22 CVEs	before 0:1.20.3.5-1.el6op	0:1.20.3.5-1.el6op

Public exploits

Links only. Every CVE stores no exploit code.

Public exploits
Source	Link	Date
PoC in GitHub	Naramsim/Offensive	2016-10-13

History

History
Recorded	Changed	Sources
Nov 6, 2026	affected, facts
Nov 3, 2026	aliases	EUVD
Nov 2, 2026	first indexed	CVE List, GitHub Advisories, NVD, OSV, PoC in GitHub

Dates are when Every CVE recorded each change. Upstream dates may differ.

In short

CVE-2014-2064 is a medium vulnerability (CVSS 5.0) in Jenkins, published October 17, 2014. Public exploit code exists. EPSS puts the chance of exploitation in the next 30 days at 2.95%, the 87th percentile. Fixed in org.jenkins-ci.main:jenkins-core 1.551.

References

Show 90 moreShow less

This page doesn't list everything

Left out here: 113 versions. The JSON record has them.