SB20260528272 - Multiple vulnerabilities in Jenkins Active Directory plugin

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Main Vulnerability Database SB20260528272

SB20260528272 - Multiple vulnerabilities in Jenkins Active Directory plugin

Published: May 28, 2026

Security Bulletin ID SB20260528272
CSH Severity
Low
Patch available
YES
Number of vulnerabilities 2
Exploitation vector Remote access
Highest impact Code execution

Breakdown by Severity

Low 100%
  • Low
  • Medium
  • High
  • Critical

Description

This security bulletin contains information about 2 vulnerabilities.


1) Server-Side Request Forgery (SSRF) (CVE-ID: CVE-2026-48918)

CWE-ID: CWE-918 - Server-Side Request Forgery (SSRF)

CVSSv4: CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N/E:U/U:Clear


The disclosed vulnerability allows a remote user to perform SSRF attacks.

The vulnerability exists due to the affected plugin follows LDAP referrals by default. A remote administrator can send a specially crafted HTTP request and trick the application to initiate requests to arbitrary systems.

Successful exploitation of this vulnerability may allow a remote attacker gain access to sensitive data, located in the local network or send malicious requests to other servers from the vulnerable system.


2) Deserialization of Untrusted Data (CVE-ID: CVE-2026-48919)

CWE-ID: CWE-502 - Deserialization of Untrusted Data

CVSSv4: CVSS:4.0/AV:N/AC:H/AT:N/PR:H/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N/E:U/U:Clear


The vulnerability allows a remote user to execute arbitrary code on the target system.

The vulnerability exists due to the affected plugin deserializes data from LDAP referrals without validation. A remote administrator can pass specially crafted data to the application and execute arbitrary code on the target system.

Successful exploitation of this vulnerability may result in complete compromise of vulnerable system.


Remediation

Install update from vendor's website.

References