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CVE-2024-23898

66
FAUCET Score

CVE-2024-23898 is a critical cross-site WebSocket hijacking (CSWSH) vulnerability affecting Jenkins versions 2.217 through 2.441 and LTS versions 2.222.1 through 2.426.2. This flaw, rated 8.8 HIGH, allows unauthenticated attackers to execute arbitrary CLI commands on the Jenkins controller due to a lack of origin validation on the CLI WebSocket endpoint. While not yet listed in CISA KEV, this vulnerability has high community discussion and media coverage, with public exploits available, indicating a significant risk of active exploitation. Organizations using affected Jenkins versions should prioritize patching immediately.

Impacted Technologies

VendorProductVersion(s)CPE
>= 2.217, <= 2.441CPE matchmatch criteria
cpe:2.3:a:jenkins:jenkins:*:*:*:*:-:*:*:*
>= 2.222.1, <= 2.426.2CPE matchmatch criteria
cpe:2.3:a:jenkins:jenkins:*:*:*:*:lts:*:*:*

CVSS Data

CVSS version used by this source: 3.1

8.8HIGH

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Attack Vector
NETWORK
Attack Complexity
LOW
Privileges Required
NONE
User Interaction
REQUIRED
Scope
UNCHANGED
Confidentiality Impact
HIGH
Integrity Impact
HIGH
Availability Impact
HIGH
Exploitability Score
2.8
Impact Score
5.9
CvssVersion
3.1

Exploit Intelligence

EPSS Score
66.92%
Probability of exploitation in next 30 days
EPSS Percentile
99.2%
Percentile rank of EPSS score among Peer Group
As of 2026-07-27
Model: v2026.06.15
This CVE's current EPSS score of 0.6692 is in the 100th percentile among its peer group of 14,855 CVEs.

Social Chatter

The average CVE in this peer group has 0.0 Twitter, 0.1 Reddit, 0.2 Bluesky, 0.1 Mastodon, and 0.2 GitHub mentions.

Media Mentions

The average CVE in this peer group has 0.3 InfoSec Media, 0.0 Vendor Blog, and 0.1 Security Researcher mentions.

Remediation

Patch Available

Vendor Patches (7)

mavenpatch availablevia ghsa
Product: org.jenkins-ci.main:jenkins-coreFixed in: 2.442
mavenpatch availablevia ghsa
Product: org.jenkins-ci.main:jenkins-coreFixed in: 2.426.3
redhatpatch availablevia redhat_api
Product: OCP-Tools-4.12-RHEL-8Fixed in: jenkins-0:2.426.3.1706515686-3.el8
View patch
redhatpatch availablevia redhat_api
Product: OCP-Tools-4.13-RHEL-8Fixed in: jenkins-0:2.426.3.1706516254-3.el8
View patch
redhatpatch availablevia redhat_api
Product: OpenShift Developer Tools and Services for OCP 4.11Fixed in: jenkins-0:2.426.3.1706516929-3.el8
View patch
jenkinsvendor investigatingvia nvd_reference
View patch
redhatend of lifevia redhat_api
Product: Red Hat OpenShift Container Platform 3.11Fixed in: jenkins

Vendor Advisories (2)

mavenGHSA-53ph-2r2x-vqw8high

Cross-site WebSocket hijacking vulnerability in the Jenkins CLI

Jan 24, 2024
redhatCVE-2024-23898Important

jenkins: cross-site WebSocket hijacking

Jan 9, 2024

References

jenkins.io / security/advisory/2024-01-24
Vendor Advisory
sonarsource.com / blog/excessive-expansion-uncovering-critical-security-vulnerabilities-in-jenkins
openwall.com / lists/oss-security/2024/01/24/6