CVE-2024-23897

CVE-2024-23897 is a critical-severity vulnerability in Jenkins with a CVSS 3.x base score of 9.8. It is listed in CISA's Known Exploited Vulnerabilities (KEV) catalog, confirming it has been exploited in the wild (added 2024-08-19). The underlying weakness is classified as CWE-22.

Key facts

• Severity: Critical (CVSS 3.x base score 9.8)
• EPSS exploit prediction: 100% (100th percentile)
• Actively exploited: Yes — listed in CISA KEV (added 2024-08-19)
• EU (EUVD) id: EUVD-2024-0270
• EU exploitation: Flagged exploited in the ENISA EU Vulnerability Database (since 2024-08-19)
• Weakness: CWE-22
• Affected product: Jenkins
• Published: 2024-01-24
• Last modified: 2026-06-17

Description

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.

Frequently asked questions

What is 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.

How severe is CVE-2024-23897?

CVE-2024-23897 has a CVSS 3.x base score of 9.8, rated critical severity. It is exploitable over network with low attack complexity, requires no privileges and no user interaction. Impact on confidentiality is high, integrity high, and availability high.

Is CVE-2024-23897 being actively exploited?

Yes. CVE-2024-23897 is on CISA's Known Exploited Vulnerabilities (KEV) catalog, added on 2024-08-19, which means active exploitation has been confirmed. It should be prioritised for remediation.

What products are affected by CVE-2024-23897?

CVE-2024-23897 primarily affects Jenkins. In total, 2 product configurations (CPEs) are listed as vulnerable; see the affected-products list for the exact versions.

How do I fix CVE-2024-23897?

Review the linked vendor and NVD advisories for patched versions and mitigations, then upgrade or apply the recommended workaround. Because this CVE is known to be actively exploited, treat remediation as urgent — CISA KEV typically sets a short remediation deadline.

Does CVE-2024-23897 have an EU (EUVD) identifier?

Yes. CVE-2024-23897 is tracked in the ENISA EU Vulnerability Database (EUVD) as EUVD-2024-0270. It is also flagged as exploited in the EUVD (since 2024-08-19).

When was CVE-2024-23897 published?

CVE-2024-23897 was published on 2024-01-24 and last updated on 2026-06-17.

References

• http://packetstormsecurity.com/files/176839/Jenkins-2.441-LTS-2.426.3-CVE-2024-23897-Scanner.html
• http://packetstormsecurity.com/files/176840/Jenkins-2.441-LTS-2.426.3-Arbitrary-File-Read.html
• http://www.openwall.com/lists/oss-security/2024/01/24/6
• https://www.jenkins.io/security/advisory/2024-01-24/#SECURITY-3314
• https://www.sonarsource.com/blog/excessive-expansion-uncovering-critical-security-vulnerabilities-in-jenkins/
• https://www.vicarius.io/vsociety/posts/the-anatomy-of-a-jenkins-vulnerability-cve-2024-23897-revealed-1
• https://www.cisa.gov/known-exploited-vulnerabilities-catalog?field_cve=CVE-2024-23897

Affected products (2)

• cpe:2.3:a:jenkins:jenkins:*:*:*:*:lts:*:*:*
• cpe:2.3:a:jenkins:jenkins:*:*:*:*:-:*:*:*

More vulnerabilities in Jenkins

• CVE-2021-21696 — Critical (CVSS 9.8): Jenkins 2.318 and earlier, LTS 2.303.2 and earlier does not limit agent read/write access to the libs/ directory inside…
• CVE-2021-21694 — Critical (CVSS 9.8): FilePath#toURI, FilePath#hasSymlink, FilePath#absolutize, FilePath#isDescendant, and FilePath#get*DiskSpace do not…
• CVE-2021-21693 — Critical (CVSS 9.8): When creating temporary files, agent-to-controller access to create those files is only checked after they've been…
• CVE-2021-21692 — Critical (CVSS 9.8): FilePath#renameTo and FilePath#moveAllChildrenTo in Jenkins 2.318 and earlier, LTS 2.303.2 and earlier only check…
• CVE-2021-21691 — Critical (CVSS 9.8): Creating symbolic links is possible without the 'symlink' agent-to-controller access control permission in Jenkins…
• CVE-2021-21690 — Critical (CVSS 9.8): Agent processes are able to completely bypass file path filtering by wrapping the file operation in an agent file path…

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Other CWE-22 (Path Traversal) vulnerabilities

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• CVE-2026-18051 — Critical (CVSS 10.0): The W3 Total Cache WordPress plugin before 2.10.5 does not properly validate the request path it uses to build cache…
• CVE-2026-74764 — Critical (CVSS 10.0): Pandora contains a path traversal vulnerability in its TAR archive extraction functionality. When processing a…
• CVE-2026-16940 — Critical (CVSS 10.0): The Custom Fields WordPress plugin before 1.5.1 does not validate a user-supplied file path before deletion, allowing…
• CVE-2026-67429 — Critical (CVSS 10.0): Flyto2 Core is an execution kernel for automation and AI-agent workflows. Prior to 2.26.6, image.download and related…
• CVE-2026-59555 — Critical (CVSS 10.0): Unauthenticated Arbitrary File Deletion in Participants Database <= 2.7.8.3 versions.

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Threat intelligence

Threat-intel indicators referencing this CVE:

• 36.134.126.74 (ipv4-addr)
• 114.242.24.31 (ipv4-addr)
• 46.99.188.194 (ipv4-addr)
• 139.198.21.205 (ipv4-addr)