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CVE-2018-1999042

20
FAUCET Score

CVE-2018-1999042 is a medium-severity vulnerability affecting Jenkins versions 2.137 and earlier, and 2.121.2 and earlier. It allows unauthenticated attackers to force Jenkins to resolve a domain name by manipulating the deserialization of java.net.URL instances. While this vulnerability has a low impact (C:L/I:N/A:N), it can be exploited remotely with low complexity. There is no evidence of active exploitation, public exploit code, or significant community discussion surrounding this CVE.

Impacted Technologies

VendorProductVersion(s)CPE
<= 2.121.2CPE matchmatch criteria
cpe:2.3:a:jenkins:jenkins:*:*:*:*:lts:*:*:*
<= 2.137CPE matchmatch criteria
cpe:2.3:a:jenkins:jenkins:*:*:*:*:-:*:*:*

CVSS Data

CVSS version used by this source: 3.0

5.3MEDIUM

CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
NONE
Scope
UNCHANGED
Confidentiality Impact
LOW
Integrity Impact
NONE
Availability Impact
NONE
Exploitability Score
3.9
Impact Score
1.4
CvssVersion
3.0

Exploit Intelligence

EPSS Score
1.46%
Probability of exploitation in next 30 days
EPSS Percentile
70.8%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.0146 is in the 53rd percentile among its peer group of 23,725 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.0 Reddit, 0.1 Bluesky, 0.0 Mastodon, and 0.4 GitHub mentions.

Media Mentions

No media coverage found for this CVE.

The average CVE in this peer group has 0.0 InfoSec Media, 0.0 Vendor Blog, and 0.0 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (11)

mavenpatch availablevia ghsa
Product: org.jenkins-ci.main:jenkins-coreFixed in: 2.121.3
mavenpatch availablevia ghsa
Product: org.jenkins-ci.main:jenkins-coreFixed in: 2.138
redhatend of lifevia redhat_api
Product: Red Hat OpenShift Container Platform 3.10Fixed in: jenkins
redhatend of lifevia redhat_api
Product: Red Hat OpenShift Container Platform 3.2Fixed in: jenkins
redhatend of lifevia redhat_api
Product: Red Hat OpenShift Container Platform 3.3Fixed in: jenkins
redhatend of lifevia redhat_api
Product: Red Hat OpenShift Container Platform 3.4Fixed in: jenkins
redhatend of lifevia redhat_api
Product: Red Hat OpenShift Container Platform 3.5Fixed in: jenkins
redhatend of lifevia redhat_api
Product: Red Hat OpenShift Container Platform 3.6Fixed in: jenkins
redhatend of lifevia redhat_api
Product: Red Hat OpenShift Container Platform 3.7Fixed in: jenkins
redhatend of lifevia redhat_api
Product: Red Hat OpenShift Container Platform 3.9Fixed in: jenkins
redhatend of lifevia redhat_api
Product: Red Hat OpenShift Enterprise 3.1Fixed in: jenkins

Vendor Advisories (2)

mavenGHSA-28p3-mchr-9frjmedium

Deserialization of Untrusted Data in Jenkins

May 14, 2022
redhatCVE-2018-1999042Low

jenkins: Deserialization of URL objects with host components

Aug 15, 2018

References

jenkins.io / security/advisory/2018-08-15
Vendor Advisory