Exposure of Sensitive Information to an Unauthorized Actor in Jenkins

published 2018-07-23 8 y ago modified 2026-06-17 4 mo ago also GHSA-2pp9-r4rv-6p6j , EUVD-2022-2027

cvss: 4.3; version 3.0, NVD
cisa kev: Not listed; not in CISA's catalog
epss: 0.9%; EPSS 0.9% chance of exploitation in 30 days, percentile 61%
public exploits: 0; none known

A exposure of sensitive information vulnerability exists in Jenkins 2.132 and earlier, 2.121.1 and earlier in Plugin.java that allows attackers to determine the date and time when a plugin HPI/JPI file was last extracted, which typically is the date of the most recent installation/upgrade.

Patch / fix

fixed in 1 distros 1 links 1

maven org.jenkins-ci.main:jenkins-core 2.121.2, 2.132

jenkins Arch Linux 2.133-1

arch linux advisories AVG-738

github.com/jenkinsci/jenkins@f46842c commit

Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2018-1999006 updated 2025-11-21 cvss 4.3

jenkins: Users with Overall/Read permission can view install date of plugins

Red Hat OpenShift Enterprise 3 jenkins
affected: no fix available

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

0.95% chance of exploitation in the next 30 days, higher than 61% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by	version	score	vector
NVD	3.0	4.3	CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
NVD	2.0	4.0	AV:N/AC:L/Au:S/C:P/I:N/A:N
GitHub	3.0	4.3	CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N

Affected packages

ecosystem	package	affected	fixed in
maven	org.jenkins-ci.main:jenkins-core	<2.121.2 >=2.122, <2.132	2.121.2 2.132

Classification

Weakness

CWE-200 Exposure of Sensitive Information to an Unauthorized Actor

Technology feeds

Jenkins rss critical rss

References

github.com /jenkinsci/jenkins/commit/f46842c7a2c916170ac457a039a2f7f019afd885
web
jenkins.io /security/advisory/2018-07-18/#SECURITY-925
web, vendor-advisory
nvd.nist.gov /vuln/detail/CVE-2018-1999006
advisory
github.com /jenkinsci/jenkins
package

Sources

Fencer Vulns keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.

Summary