CVE-2026-48918 Details
Description
Jenkins Active Directory Plugin 2.41 and earlier follows LDAP referrals by default.
A vulnerability in the Jenkins Active Directory Plugin, specifically in versions through 2.41, allows for remote code execution due to unvalidated LDAP referrals. By default, the plugin follows LDAP referrals from the configured Active Directory server, which can be manipulated to forward to an RMI URL. This exploitation causes Jenkins to deserialize attacker-controlled data, potentially leading to remote code execution on the Jenkins controller if certain deserialization 'gadgets' are available. The vulnerability can be exploited by attackers who control the LDAP server or who can perform a man-in-the-middle attack.
Users of the Active Directory Plugin should update to version 2.41.1. Those unable to update can start Jenkins with the Java system property 'hudson.plugins.active_directory.referral.ignore' set to 'true' to mitigate the vulnerability. For administrators requiring the plugin to follow LDAP referrals, the property can be set to 'false' to restore the previous behavior.
Metrics
CVSS 4.0 Severity and Vector Strings:
No CVSS 4.0 data is available for this CVE.
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
CISA-ADP
Assessed May 27, 2026References to Advisories, Solutions, and Tools
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| URL | Source(s) | Tag(s) |
|---|---|---|
| https://www.jenkins.io/security/advisory/2026-05-27/#SECURITY-3659 | [email protected] | Vendor Advisory |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-918 | Server-Side Request Forgery (SSRF) | CISA-ADP |
Affected Products
| Product | Versions |
|---|---|
| jenkins active directory | <= 2.41 |
CPE
Remediation
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Change History
5 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Jun 17, 2026 | CVE Modified | [email protected] |
| Jun 17, 2026 | CVE Modified | CISA-ADP |
| May 28, 2026 | Initial Analysis | [email protected] |
| May 27, 2026 | CVE Modified | CISA-ADP |
| May 27, 2026 | New CVE Received | [email protected] |