CVE-2026-33001
Jenkins Symbolic Link Archive Extraction Vulnerability (Path Traversal)
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.
INFO
Published Date :
March 18, 2026, 4:16 p.m.
Last Modified :
March 20, 2026, 6:08 p.m.
Remotely Exploit :
Yes !
Source :
[email protected]
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 3.1 | HIGH | 134c704f-9b21-4f2e-91b3-4a467353bcc0 |
Solution
- Update Jenkins to a secure version.
- Ensure Jenkins is running with least privilege.
- Review Jenkins job configurations for safety.
References to Advisories, Solutions, and Tools
Here, you will find a curated list of external links that provide in-depth
information, practical solutions, and valuable tools related to
CVE-2026-33001.
| URL | Resource |
|---|---|
| https://www.jenkins.io/security/advisory/2026-03-18/#SECURITY-3657 | Vendor Advisory |
CWE - Common Weakness Enumeration
While CVE identifies
specific instances of vulnerabilities, CWE categorizes the common flaws or
weaknesses that can lead to vulnerabilities. CVE-2026-33001 is
associated with the following CWEs:
Common Attack Pattern Enumeration and Classification (CAPEC)
Common Attack Pattern Enumeration and Classification
(CAPEC)
stores attack patterns, which are descriptions of the common attributes and
approaches employed by adversaries to exploit the CVE-2026-33001
weaknesses.
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-33001 vulnerability anywhere in the article.
-
The Hacker News
⚡ Weekly Recap: CI/CD Backdoor, FBI Buys Location Data, WhatsApp Ditches Numbers & More
Another week, another reminder that the internet is still a mess. Systems people thought were secure are being broken in simple ways, showing many still ignore basic advisories. This edition covers a ... Read more
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CybersecurityNews
Critical Jenkins Vulnerabilities Expose CI/CD Servers to RCE Attacks
Jenkins Vulnerabilities Expose CI/CD Servers A critical security advisory addressing multiple high-severity vulnerabilities in Jenkins core and the LoadNinja plugin. Issued on March 18, 2026, the aler ... Read more
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Daily CyberSecurity
Critical Jenkins Flaws Expose CI/CD Servers to Remote Code Execution
The Jenkins project has released a critical security advisory addressing multiple vulnerabilities that could lead to full system compromise. The advisory highlights two high-severity flaws in the Jenk ... Read more
The following table lists the changes that have been made to the
CVE-2026-33001 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
-
Initial Analysis by [email protected]
Mar. 20, 2026
Action Type Old Value New Value Added CPE Configuration OR *cpe:2.3:a:jenkins:jenkins:*:*:*:*:-:*:*:* versions up to (excluding) 2.555 *cpe:2.3:a:jenkins:jenkins:*:*:*:*:lts:*:*:* versions up to (excluding) 2.541.3 Added Reference Type Jenkins Project: https://www.jenkins.io/security/advisory/2026-03-18/#SECURITY-3657 Types: Vendor Advisory -
CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
Mar. 19, 2026
Action Type Old Value New Value Added CVSS V3.1 AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H Added CWE CWE-59 -
New CVE Received by [email protected]
Mar. 18, 2026
Action Type Old Value New Value Added 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. Added Reference https://www.jenkins.io/security/advisory/2026-03-18/#SECURITY-3657