CVE-2018-1000864

Loop with Unreachable Exit Condition in Jenkins

6.5 MediumFix available

A denial of service vulnerability exists in Jenkins 2.153 and earlier, LTS 2.138.3 and earlier in CronTab.java that allows attackers with Overall/Read permission to have a request handling thread enter an infinite loop.

Attack profile

How easy it is to exploit

Attack vector: Network
Complexity: Low
Privileges needed: Low
User interaction: None

What an attacker can affect

Confidentiality: None
Integrity: None
Availability: High

Exploit likelihood

2.75%Up 1.7 points since Apr 14, 2021

What each source reports

NVD Score used 6.5

Record: CVE-2018-1000864
CVSS 3.0: 6.5 MediumCVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
CVSS 2.0: 4.0 MediumAV:N/AC:L/Au:S/C:N/I:N/A:P
Weakness: CWE-835
Updated: 2026-11-02

CVE List No score

Record: CVE-2018-1000864
Updated: 2026-11-02

EUVDEUVD-2022-3354 No score

Record: EUVD-2022-3354
Updated: 2026-11-03

GitHub AdvisoriesGHSA-9cjv-93g7-c6mv 6.5

Loop with Unreachable Exit Condition in Jenkins

Record: GHSA-9cjv-93g7-c6mv
CVSS 3.0: 6.5 MediumCVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Weakness: CWE-835
Updated: 2026-11-02

OSV 6.5

Record: CVE-2018-1000864
CVSS 3.0: 6.5 MediumCVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Updated: 2026-11-02

OSVGHSA-9cjv-93g7-c6mv 6.5

Loop with Unreachable Exit Condition in Jenkins

Record: GHSA-9cjv-93g7-c6mv
CVSS 3.0: 6.5 MediumCVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
Weakness: CWE-835
Updated: 2026-11-02

OSVRHBA-2019:0024 8.8

Red Hat Bug Fix Advisory: OpenShift Container Platform 3.11 bug fix and enhancement update

Record: RHBA-2019:0024
CVSS 3.0: 8.8 HighCVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Updated: 2026-11-02

Affected products

Affected packages

Affected packages
Package	Affected	Fixed
`org.jenkins-ci.main:jenkins-core` Maven	through 2.138.3	2.138.4
`org.jenkins-ci.main:jenkins-core` Maven	2.140 to 2.153	2.154
`org.jenkins-ci.main:jenkins-core` Maven	before 2.138.4, 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	2.138.4
`org.jenkins-ci.main:jenkins-core` Maven	2.140 up to 2.154, plus listed versions 2.1412.1422.1432.1442.145 Show 11 moreShow less 2.1462.1472.1482.1492.1502.150.12.150.22.150.32.1512.1522.153	2.154
`jenkins` Red Hat:openshift:3.11::el7 From an advisory covering 4 CVEs	before 0:2.138.4.1544416383-1.el7	0:2.138.4.1544416383-1.el7

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

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

In short

CVE-2018-1000864 is a medium vulnerability (CVSS 6.5) in Jenkins, published December 10, 2018. No source lists public exploit code. EPSS puts the chance of exploitation in the next 30 days at 2.75%, the 86th percentile. Fixed in org.jenkins-ci.main:jenkins-core 2.138.4.

References

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This page doesn't list everything

Left out here: 451 versions. The JSON record has them.