CVE-2026-117616
Jenkins Arbitrary File Read and Write Vulnerability
Description
Jenkins 2.587 and earlier, LTS 2.580.1 and earlier provides an HTTP endpoint that loads agents by name without validating the name, allowing attackers with Overall/Read permission to load any config.xml file on the controller file system as an agent configuration, and to overwrite an arbitrary config.xml file when that agent is saved, potentially resulting in arbitrary code execution.
INFO
Published Date :
Oct. 28, 2026, 5:18 p.m.
Last Modified :
Nov. 2, 2026, 3:10 p.m.
Remotely Exploit :
Yes !
Source :
[email protected]
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS 3.1 | HIGH | [email protected] |
Solution
- Update Jenkins to a non-vulnerable version.
- Ensure agents are loaded securely.
- Restrict Overall/Read permissions.
- Review agent configuration files.
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-2026-117616.
| URL | Resource |
|---|---|
| https://www.jenkins.io/security/advisory/2026-10-28/#SECURITY-4188 | Mitigation 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-2026-117616 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-2026-117616
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-2026-117616 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-117616 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]
Nov. 02, 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-22 Added CPE Configuration OR *cpe:2.3:a:jenkins:jenkins:*:*:*:*:-:*:*:* versions up to (excluding) 2.588 *cpe:2.3:a:jenkins:jenkins:*:*:*:*:lts:*:*:* versions up to (excluding) 2.580.2 Added Reference Type Jenkins Project: https://www.jenkins.io/security/advisory/2026-10-28/#SECURITY-4188 Types: Mitigation, Vendor Advisory -
New CVE Received by [email protected]
Oct. 28, 2026
Action Type Old Value New Value Added Description Jenkins 2.587 and earlier, LTS 2.580.1 and earlier provides an HTTP endpoint that loads agents by name without validating the name, allowing attackers with Overall/Read permission to load any config.xml file on the controller file system as an agent configuration, and to overwrite an arbitrary config.xml file when that agent is saved, potentially resulting in arbitrary code execution. Added Affected New affected value received. <a href="https://github.com/CVEProject/cvelistV5/blob/main/cves/2026/117xxx/CVE-2026-117616.json">CVE-2026-117616</a> Added Reference https://www.jenkins.io/security/advisory/2026-10-28/#SECURITY-4188