What is CVE-2024-23897?

CVE-2024-23897 is a critical-severity vulnerability in Jenkins, classified under Path Traversal. CVSS score: 9.8/10. Published 2024-01-24.

How severe is CVE-2024-23897?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Is CVE-2024-23897 known to be exploited?

Yes. CVE-2024-23897 is listed in the CISA Known Exploited Vulnerabilities catalog (added 2024-08-19), indicating it is being actively exploited. 174 public proof-of-concept repositories are indexed.

Path Traversal in Jenkins

CVE-2024-23897

Jenkins 2.441 and earlier, LTS 2.426.2 and earlier does not disable a feature of its CLI command parser that replaces an '@' character followed by a file path in an argument with the file's contents, allowing unauthenticated attackers to read arbitrary files on the Jenkins controller file system.

Vulnerability class: Path Traversal (Directory Traversal)

Published 2024-01-24 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 1.000 (100.0th percentile), scored 2026-07-25.

Very high probability of exploitation in the next 30 days — among the top 0.1% most-likely-to-be-exploited CVEs. 100th percentile — 100.0% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

The 30-day trend appears once there are two daily scores.

Affected products

Jenkins
Jenkins Project — versions 0, 2.442, 2.426.3

Weakness classification (CWE)

CISA KEV (Known Exploited Vulnerabilities)

This CVE is on the CISA KEV catalog, added on 2024-08-19. CISA KEV inclusion means CISA has confirmed in-the-wild exploitation; US federal agencies are required to remediate within a published due date.

BOD 22-01 due date: 2024-09-09.

Required action: Apply mitigations per vendor instructions or discontinue use of the product if mitigations are unavailable.

Known ransomware campaign use: yes.

Public proof-of-concept exploits

References

www.jenkins.io/security/advisory/2024-01-24/ (vendor-advisory, Vendor Advisory)
www.sonarsource.com/blog/excessive-expansion-uncovering-critical-security-vulne… (Exploit, Press/Media Coverage)
www.openwall.com/lists/oss-security/2024/01/24/6 (Mailing List)
packetstormsecurity.com/files/176839/Jenkins-2.441-LTS-2.426.3-CVE-2024-23897-S… (VDB Entry, Third Party Advisory)
packetstormsecurity.com/files/176840/Jenkins-2.441-LTS-2.426.3-Arbitrary-File-R… (Exploit, VDB Entry, Third Party Advisory)
af854a3a-2127-422b-91ae-364da2661108 (Exploit, Third Party Advisory)
134c704f-9b21-4f2e-91b3-4a467353bcc0 (US Government Resource)

Frequently asked questions

What is CVE-2024-23897?: CVE-2024-23897 is a critical-severity vulnerability in Jenkins, classified under Path Traversal. CVSS score: 9.8/10. Published 2024-01-24.
How severe is CVE-2024-23897?: Critical severity. CVSS v3 base score is 9.8 out of 10.
Is CVE-2024-23897 known to be exploited?: Yes. CVE-2024-23897 is listed in the CISA Known Exploited Vulnerabilities catalog (added 2024-08-19), indicating it is being actively exploited. 174 public proof-of-concept repositories are indexed.