CVE-2026-33001
Received Received - Intake
Path Traversal in Jenkins Archive Extraction Allows Arbitrary File Write

Publication date: 2026-03-18

Last updated on: 2026-03-20

Assigner: Jenkins Project

Description
Jenkins 2.554 and earlier, LTS 2.541.2 and earlier does not safely handle symbolic links during the extraction of .tar and .tar.gz archives, allowing crafted archives to write files to arbitrary locations on the filesystem, restricted only by file system access permissions of the user running Jenkins. This can be exploited to deploy malicious scripts or plugins on the controller by attackers with Item/Configure permission, or able to control agent processes.
CVSS Scores
EPSS Scores
Probability:
Percentile:
Meta Information
Published
2026-03-18
Last Modified
2026-03-20
Generated
2026-06-16
AI Q&A
2026-03-18
EPSS Evaluated
2026-06-14
NVD
CVE-2026-33001
EUVD
EUVD-2026-12843
Affected Vendors & Products
Showing 2 associated CPEs
Vendor Product Version / Range
jenkins jenkins to 2.555 (exc)
jenkins jenkins to 2.541.3 (exc)
Helpful Resources
Exploitability
CWE
CWE Icon
KEV
KEV Icon
CWE ID Description
CWE-59 The product attempts to access a file based on the filename, but it does not properly prevent that filename from identifying a link or shortcut that resolves to an unintended resource.
Attack-Flow Graph
AI Quick Actions
Instant insights powered by AI
Executive Summary

This vulnerability exists in Jenkins versions 2.554 and earlier, including LTS 2.541.2 and earlier. It involves unsafe handling of symbolic links during the extraction of .tar and .tar.gz archives. Specifically, crafted archives can exploit this flaw to write files to arbitrary locations on the filesystem, limited only by the file system access permissions of the user running Jenkins.

Attackers with Item/Configure permission or control over agent processes can exploit this vulnerability to deploy malicious scripts or plugins on the Jenkins controller.

Impact Analysis

The vulnerability can allow attackers who have certain permissions (Item/Configure) or control over agent processes to write files anywhere on the filesystem accessible to Jenkins. This can lead to the deployment of malicious scripts or plugins on the Jenkins controller.

Such unauthorized file writes can compromise the integrity and security of the Jenkins environment, potentially leading to unauthorized code execution, system compromise, or disruption of CI/CD pipelines.

Compliance Impact

I don't know

Detection Guidance

I don't know

Mitigation Strategies

I don't know

Chat Assistant
Ask questions about this CVE
Hi! I’m here to help you understand CVE-2026-33001. Ask me anything about the vulnerability, its impact, or mitigation strategies.
0/70
EPSS Chart