CVE-2026-48917 Details
Description
Jenkins LDAP Plugin 807.v7d7de30930cf and earlier deserializes data from LDAP referrals without validation.
A deserialization vulnerability has been identified in the Jenkins LDAP Plugin, specifically in versions through 807.v7d7de30930cf. The vulnerability arises because the plugin deserializes data from LDAP referrals without proper validation. This issue can lead to remote code execution on the Jenkins controller, especially if deserialization 'gadgets' are available on the classpath. The vulnerability can be exploited by attackers who control the configured LDAP server or who can perform a man-in-the-middle attack.
Users of the Jenkins LDAP Plugin should update to version 807.809.vd3a_4e5e4ec98, which no longer follows LDAP referrals. For those unable to update, the vulnerability can be mitigated by setting the Java system property 'hudson.plugins.ldap.referral.ignore' to 'true'.
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-3654 | [email protected] | Vendor Advisory |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-502 | Deserialization of Untrusted Data | CISA-ADP |
Affected Products
| Product | Versions |
|---|---|
| jenkins ldap | <= 793.v754d6b_41b_ea_4 807.v7d7de30930cf |
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 |
| Jun 2, 2026 | Initial Analysis | [email protected] |
| May 27, 2026 | CVE Modified | CISA-ADP |
| May 27, 2026 | New CVE Received | [email protected] |