CVE-2026-33001
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
Description
CVSS Scores
EPSS Scores
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Meta Information
Affected Vendors & Products
| Vendor | Product | Version / Range |
|---|---|---|
| jenkins | jenkins | to 2.555 (exc) |
| jenkins | jenkins | to 2.541.3 (exc) |
Helpful Resources
Exploitability
| 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 Powered Q&A
Can you explain this vulnerability to me?
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.
How can this vulnerability impact me? :
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.
How does this vulnerability affect compliance with common standards and regulations (like GDPR, HIPAA)?:
I don't know
How can this vulnerability be detected on my network or system? Can you suggest some commands?
I don't know
What immediate steps should I take to mitigate this vulnerability?
I don't know