GitHub Advisoryadvisory · Maven

GHSA-x9v8-p946-5pwc Jenkins LDAP Plugin deserializes data from LDAP referrals without validation

MEDIUM Published 2026-05-27 Modified 2026-07-01 Official page ↗
Aliases
CVE-2026-48917
Ecosystem
Maven
Packages
org.jenkins-ci.plugins:ldap
Severity
Moderate
CVSS vector
CVSS:3.1/AV:N/AC:H/PR:H/UI:N/S:U/C:H/I:H/A:H
Weaknesses
CWE-502
Reviewed
2026-07-01

Affected packages

• Maven org.jenkins-ci.plugins:ldap: < 807.809.vd3a → fixed in 807.809.vd3a

Description

Jenkins LDAP Plugin 807.v7d7de30930cf and earlier follows LDAP referrals from the configured LDAP server. These can forward to an RMI URL that causes Jenkins to deserialize attacker-controlled data, resulting in Remote Code Execution (RCE) on the Jenkins controller if deserialization "gadgets" are available on the classpath. This allows attackers able to control the configured LDAP server, or able to perform a machine-in-the-middle attack, to execute code on the Jenkins controller. LDAP Plugin 807.809.vd3a_4e5e4ec98 no longer follows LDAP referrals.

Related

Alias · CVE (1)

  • CVE-2026-48917 Jenkins LDAP Plugin 807.v7d7de30930cf and earlier deserializes data from LDAP referrals without validation. vulnerability

Weakness · CWE (1)

  • CWE-502 Deserialization of Untrusted Data weakness

References