Jenkins 2.217 through 2.441 (both inclusive), LTS 2.222.1 through 2.426.2 (both inclusive) does not perform origin validation of requests made through the CLI WebSocket endpoint, resulting in a cross-site WebSocket hijacking (CSWSH) vulnerability, allowing attackers to execute CLI commands on the Jenkins controller.
CVE-2024-23898
This high-severity CVE scores 8.8 under NVD CVSS v3. EPSS exploit probability: 66.9%, top 1% of all CVEs by exploit prediction. GitHub Security Advisory data not yet ingested — confidence will rise once GHSA publishes (typical lag: hours to days for open-source ecosystem CVEs; never for infrastructure-only CVEs).
- 547 internet-exposed hosts are running an affected version right now
- High exploitation likelihood — EPSS 67%
A fix is available — apply it.
547 internet-exposed hosts are running an affected version of CVE-2024-23898 right now.
EchelonGraph is the only CVE feed that fuses live vulnerability intelligence with its own live internet-exposure radar — so you see not just that a CVE is exploited, but how much of the internet is exposed to it right now.
- CVSS v3
- 8.8
- EG Score
- 8.8(medium)
- EG Risk
- —
- EPSS
- 99.2%
- KEV
- Not listed
Published
January 24, 2024
Last Modified
June 20, 2025
References (6)
- jenkinsci-cert@googlegroupshttp://www.openwall.com/lists/oss-security/2024/01/24/6
- jenkinsci-cert@googlegroupshttps://www.jenkins.io/security/advisory/2024-01-24/#SECURITY-3315
- jenkinsci-cert@googlegroupshttps://www.sonarsource.com/blog/excessive-expansion-uncovering-critical-security-vulnerabilities-in-jenkins/
- af854a3a-2127-422b-91ae-364da2661108http://www.openwall.com/lists/oss-security/2024/01/24/6
- af854a3a-2127-422b-91ae-364da2661108https://www.jenkins.io/security/advisory/2024-01-24/#SECURITY-3315
- af854a3a-2127-422b-91ae-364da2661108https://www.sonarsource.com/blog/excessive-expansion-uncovering-critical-security-vulnerabilities-in-jenkins/
Vendor Advisories for CVE-2024-23898(3)
These vendors published their own advisory mentioning this CVE — often with vendor-specific remediation steps + affected product lists not in NVD.
- RHSA-2024:0775Red Hat Product SecurityHigh
Red Hat Security Advisory: jenkins and jenkins-2-plugins security update
- RHSA-2024:0778Red Hat Product SecurityHigh
Red Hat Security Advisory: Jenkins and Jenkins-2-plugins security update
- RHSA-2024:0776Red Hat Product SecurityHigh
Red Hat Security Advisory: jenkins and jenkins-2-plugins security update
Patch Availability(3)
| Vendor / Ecosystem | Fixed in / Patch | Released | Source |
|---|---|---|---|
| redhat | jenkins-0:2.426.3.1706515686-3.el8 | 2024-02-12 | redhat |
| redhat | jenkins-0:2.426.3.1706516254-3.el8 | 2024-02-12 | redhat |
| redhat | jenkins-0:2.426.3.1706516929-3.el8 | 2024-02-12 | redhat |
Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.
Affected Packages
(1 across 1 ecosystem)
Maven(1)
| Package | Vulnerable range | Fixed in | Dependents |
|---|---|---|---|
| org.jenkins-ci.main:jenkins-core | 2.441 | — | — |
Weakness Classification(1)
MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.
Data Freshness Timeline
(refreshed 7× in last 7d / 33× in last 30d)
Each row is a source pipeline that fetched or updated this CVE on that date, with what changed. For example, "NVD update" means NVD published or revised its analysis for this CVE; "MITRE cvelistV5" means we ingested or refreshed it from the CNA feed. Most recent first.
- 2026-07-22 23:20 UTCEG score recompute
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- 2026-06-27 03:07 UTCEPSS rescore
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- 2026-05-26 07:18 UTCEPSS rescore
- 2026-05-24 09:42 UTCEG score recompute
- 2026-05-24 09:42 UTCVendor advisory
Publicly available exploits
(1 reference)Working exploit code is in the public domain (1 GitHub PoC). Defenders should treat patch urgency accordingly — public PoCs typically lead to mass-exploitation within 24-72 hours.
- GitHub PoCdavidmgaviria/CVE2_Jenkins_RCEFirst seen Nov 14, 2024
A proof of concept cross-site WebSocket hijacking exploit for CVE-2024-23898 — a vulnerability affecting Jenkins versions 2.217-2.441. For educational use in the Hacking & Offensive Security course at Carnegie Mellon University.
Open source ↗
Frequently asked(5)
What is CVE-2024-23898?
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Dependency Blast Radius
See which npm, PyPI, Go, and Maven packages are affected by CVE-2024-23898
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