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SCA: security update for org.jenkins-ci.plugins:matrix-auth (GHSA-jp9r-mmhw-vff3)

medium Tenable Cloud Security Plugin ID 441388

Description

There are packages installed that are affected by a vulnerability referenced in the following CVE:

 - 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. (CVE-2026-42521)

Solution

Update the org.jenkins-ci.plugins:matrix-auth library and its related packages to version 3.2.10 or later.

See Also

https://github.com/advisories/GHSA-jp9r-mmhw-vff3

Plugin Details

Severity: Medium

ID: 441388

Version: Revision 1.2

Type: Local

Family: SCA Checks

Published: 5/7/2026

Updated: 5/27/2026

Supported Sensors: Tenable Cloud Security, Tenable Self-Hosted Container Security

Risk Information

VPR

Risk Factor: Low

Score: 3

Percentile: 23.73

Vendor

Vendor Severity: Medium

CVSS v2

Risk Factor: Medium

Base Score: 6.8

Temporal Score: 5

Vector: CVSS2#AV:N/AC:L/Au:S/C:N/I:C/A:N

CVSS Score Source: CVE-2026-42521

CVSS v3

Risk Factor: Medium

Base Score: 6.5

Temporal Score: 5.7

Vector: CVSS:3.0/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

Exploit Ease: No known exploits are available

Patch Publication Date: 4/29/2026

Vulnerability Publication Date: 4/29/2026

Reference Information

CVE: CVE-2026-42521

cwe: CWE-502