CVE-2024-23897 is a path traversal vulnerability in Jenkins Jenkins Command Line Interface (CLI). CISA added it to the Known Exploited Vulnerabilities catalogue on 19 August 2024, which means attackers have used it in real attacks. Jenkins Command Line Interface (CLI) contains a path traversal vulnerability that allows attackers limited read access to certain files, which can lead to code execution.
What this Jenkins CLI vulnerability means
CVE-2024-23897 affects the Jenkins Command Line Interface through path traversal, which matters because attackers can use limited file read access as a stepping stone toward higher-impact compromise. Jenkins should be treated as sensitive infrastructure, because access to job data, configuration, and adjacent secrets can quickly turn a read primitive into broader operational risk.
For a practical view of how traversal flaws in administrative and tooling surfaces are abused, the broader pattern is covered in the Web Application Attacks Guide. The weakness here is not just the file read itself, but the trust placed in a management interface that may sit close to build credentials, source code references, and automation context.
Why this vulnerability is dangerous in Jenkins
Jenkins often sits at the center of software delivery, so even constrained disclosure can expose environment details, build logic, or secrets that help an attacker pivot. Once an attacker learns enough about the instance, the path from information disclosure to code execution becomes much shorter than it first appears.
That is why exploit chains around Jenkins frequently end up resembling credential theft or control-plane abuse rather than a simple web bug. Real-world incidents involving exposed tokens and build-system access are discussed in Homebrew GitHub token exposure 2018 and the broader compromise patterns in The State of NHI & AI Agent Breach Report 2026, both of which show how quickly exposed secrets can become an operational breach.
How organisations should assess exposure and reduce blast radius
Exposure review should start with inventory: identify which Jenkins controllers are reachable, which ones are internet-facing, and whether older administrative interfaces are still enabled where they are not needed. Because the issue is being actively exploited, organisations should also compare their asset list against vendor guidance and CISA KEV tracking rather than waiting for routine patch cycles.
The Vulnerability Management Guide is useful here because it frames the exact operational questions that matter: scope, prioritisation, exception handling, verification, and remediation tracking. For Jenkins specifically, compensating controls should reduce exposure to the CLI surface, restrict who can reach the instance, and limit what nearby credentials or build secrets can be accessed if traversal is abused.
Detection, remediation, and post-exploitation review
Detection should focus on unusual CLI access, unexpected file read patterns, abnormal job or plugin activity, and any signs that the Jenkins host or connected secrets stores were touched after the vulnerability was used. After patching, teams should not assume the environment is clean, because a read primitive can still have enabled credential theft, persistence, or follow-on compromise before the fix was applied.
Review related secret material, rotate anything the instance could expose, and inspect adjacent systems that trust Jenkins for deployment, signing, or automation. If you need a broader reference point for how exposed credentials and build-system compromise propagate, BeyondTrust breach 2024 shows how a single compromised access path can cascade into wider environment access.
Risk and Threat Considerations
This vulnerability is dangerous because Jenkins is often trusted infrastructure, and a file traversal bug on a trusted control plane can expose information that should never be readable by an attacker. Even limited disclosure can reveal paths, config fragments, credentials, or build details that materially lower the cost of exploitation.
Failure mechanism: The attacker uses path traversal in the CLI to read sensitive files, then leverages whatever is disclosed to find secrets, session material, or execution opportunities on the Jenkins host or adjacent systems.
Impact: The likely outcome is wider compromise of build infrastructure, exposed credentials, unauthorized code or configuration changes, and potential code execution if the disclosure leads to a usable attack chain.
Standards & Framework Alignment
This section maps relevant standards and security frameworks to the operational risks and controls described in this guidance.
OWASP API Security Top 10 addresses the attack and risk surface, while OWASP ASVS, NIST SP 800-53 Rev 5 and NIST CSF 2.0 set the governance and control requirements practitioners need to meet.
| Framework | Control / Reference | Relevance |
|---|---|---|
| OWASP ASVS | V4 — API and Web Service | Jenkins CLI exposure is a command interface security issue tied to request handling and access control. |
| Recommendation — Harden the CLI surface and validate every request path before it reaches file handling or command execution logic. | ||
| OWASP API Security Top 10 | API8 — Security Misconfiguration | The CLI becomes dangerous when administrative exposure and access controls are misconfigured. |
| Recommendation — Reduce CLI exposure by tightening administrative access and removing unnecessary attack surface. | ||
| NIST SP 800-53 Rev 5 | AC-6 — Least Privilege | Limiting Jenkins and adjacent service privileges reduces the blast radius of a successful traversal exploit. |
| SI-10 — Information Input Validation | Path traversal is a direct input-handling weakness that maps to validation controls. | |
| Recommendation — Apply least privilege to Jenkins service accounts and connected automation credentials. Validate and constrain CLI input so traversal sequences cannot resolve outside approved paths. | ||
| NIST CSF 2.0 | DE.CM-01 — Continuous Monitoring | Active exploitation requires monitoring for suspicious CLI and file-access activity. |
| Recommendation — Monitor Jenkins activity for abnormal CLI use, file reads, and post-exploitation changes. | ||
Related resources from NHI Mgmt Group
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Reviewed and updated by the NHIMG editorial team on October 17, 2026.
NHI Mgmt Group — the #1 independent authority on Non-Human Identity, IAM, and Agentic AI security. nhimg.org