CVE-2026-42521
MEDIUM EPSS 15.6%
Published Apr 29, 20262mo ago · Modified Jun 17, 20262w ago
6.5 CVSS 3.1
Published Apr 29, 2026 2mo ago
Last Modified Jun 17, 2026 2w ago
Description
Jenkins Matrix Authorization Strategy Plugin 2.0-beta-1 through 3.2.9 (both inclusive) invokes parameterless constructors of classes specified in configuration when deserializing inheritance strategies, without restricting the classes that can be instantiated, allowing attackers with Item/Configure permission to instantiate arbitrary types, which may lead to information disclosure or other impacts depending on the classes available on the classpath.
CVSS Details
Base Score
Exploitability
Impact
Vector string
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N Attack Vector Network
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope Unchanged
Confidentiality None
Integrity High
Availability None
Threat Intelligence
EPSS Exploit Probability
15.6% percentile
Exploit & Patch Status
No Known Exploit
No Patch Available
Weaknesses 1
CWE-502 Deserialization of Untrusted Data Validation
Affected Products 4
References 1
- jenkins.io https://www.jenkins.io/security/advisory/2026-04-29/#SECURITY-3676
Remediation
No remediation data recorded yet
Check vendor advisories and the NVD entry for patch availability.