CVE-2026-42521

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Source
https://cve.org/CVERecord?id=CVE-2026-42521
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-42521.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-42521
Aliases
Downstream
Related
Published
2026-04-29T14:16:19.170Z
Modified
2026-07-08T08:13:24.743228783Z
Severity
  • 6.5 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N CVSS Calculator
Summary
[none]
Details

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.

Database specific 
{
    "unresolved_ranges": [
        {
            "vendor_product": "jenkins:matrix_authorization_strategy",
            "cpes": [
                "cpe:2.3:a:jenkins:matrix_authorization_strategy:2.0:beta1:*:*:*:jenkins:*:*",
                "cpe:2.3:a:jenkins:matrix_authorization_strategy:2.0:beta2:*:*:*:jenkins:*:*",
                "cpe:2.3:a:jenkins:matrix_authorization_strategy:2.0:beta3:*:*:*:jenkins:*:*"
            ],
            "source": "CPE_STRING",
            "extracted_events": [
                {
                    "introduced": "2.0-beta1"
                },
                {
                    "last_affected": "2.0-beta1"
                },
                {
                    "introduced": "2.0-beta2"
                },
                {
                    "last_affected": "2.0-beta2"
                },
                {
                    "introduced": "2.0-beta3"
                },
                {
                    "last_affected": "2.0-beta3"
                }
            ]
        }
    ]
}
References

Affected packages

Git / github.com/jenkinsci/matrix-auth-plugin

Affected ranges

Type
GIT
Repo
https://github.com/jenkinsci/matrix-auth-plugin
Events
Introduced
44a577a8208ede02d6d20fe0aa6ba8c2ad7efc7b
Fixed
b3f7342c0fae5a81afe3e18f86f1633695e8cd82
Database specific
Show details 
{
    "cpe": "cpe:2.3:a:jenkins:matrix_authorization_strategy:*:*:*:*:*:jenkins:*:*",
    "extracted_events": [
        {
            "introduced": "2.1"
        },
        {
            "fixed": "3.2.10"
        }
    ],
    "source": "CPE_RANGE"
}

Affected versions

matrix-auth-2.*
matrix-auth-2.1
matrix-auth-2.1.1
matrix-auth-2.2
matrix-auth-2.3
matrix-auth-2.4
matrix-auth-2.4.1
matrix-auth-2.4.2
matrix-auth-2.5
matrix-auth-2.6
matrix-auth-2.6.1
matrix-auth-2.6.10
matrix-auth-2.6.11
matrix-auth-2.6.2
matrix-auth-2.6.3
matrix-auth-2.6.4
matrix-auth-2.6.5
matrix-auth-2.6.6
matrix-auth-2.6.7
matrix-auth-2.6.8
matrix-auth-2.6.9
matrix-auth-3.*
matrix-auth-3.0
matrix-auth-3.0.1
matrix-auth-3.1
matrix-auth-3.1.1
matrix-auth-3.1.10
matrix-auth-3.1.2
matrix-auth-3.1.3
matrix-auth-3.1.4
matrix-auth-3.1.5
matrix-auth-3.1.6
matrix-auth-3.1.7
matrix-auth-3.1.8
matrix-auth-3.1.9
matrix-auth-3.2
matrix-auth-3.2.1
matrix-auth-3.2.2
matrix-auth-3.2.3
matrix-auth-3.2.4
matrix-auth-3.2.5
matrix-auth-3.2.6
matrix-auth-3.2.7
matrix-auth-3.2.8
matrix-auth-3.2.9

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-42521.json"