VulnSocial

CVE-2026-42521Disclosure(jenkins / matrix_authorization_strategy)

LOWCVSS 6.5 · MEDIUM

Signal is active with 1 mentions in latest observed window

Immediate actions

  • Track advisory updates for patch or workaround availability

Recommended action window: Monitor and triage in normal cycle

NVD 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.

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0.0/ 10 priority

Sources & remediation

Vendor / third-party advisories
Weakness type (CWE)
CWE-502

Priority

LOW

Exploitation

NONE

PoC

NONE

Patch

NONE

Momentum

NONE

Are you affected?

If you run products in this scope, you should treat this CVE as relevant to your environment.

  • matrix_authorization_strategy

Threat summary

  • 1 mentions across 1 observed day

What's happening

  • Technical details provided in 1 signal
  • Disclosure: 1 classified signal
  • 1 total mentions across 1 day

Affected systems

Vendors
jenkins
Products
matrix_authorization_strategy

1 version affected across 1 product

Deep dive

Activity timeline1 mentions / 1d
00111Mentions · 2026-04-29: 1Technical Details · 2026-04-29: 104-29
Signal classification1 categories
Disclosure
1100.0%
Referenced assets1 URL
By indicator
Full discourse1 post
  • CVE@CVEnew
    Disclosure

    CVE-2026-42521 Jenkins Matrix Authorization Strategy Plugin 2.0-beta-1 through 3.2.9 (both inclusive) invokes parameterless constructors of classes specified in configuration when d… https://www.cve.org/CVERecord?id=CVE-2026-42521

    Post summary

    A new CVE-2026-42521 affecting Jenkins Matrix Authorization Strategy Plugin is disclosed, highlighting that the plugin invokes parameterless constructors from configuration, but no PoC, exploit, or patch details are provided.

    0000099
    57.3K followersView on X
CPE platform detail4 entries

4 of 4 entries

PartVendorProductVersionTarget SWTarget HW
Appjenkinsmatrix_authorization_strategy-jenkins-
Appjenkinsmatrix_authorization_strategy2.0jenkins-
Appjenkinsmatrix_authorization_strategy2.0jenkins-
Appjenkinsmatrix_authorization_strategy2.0jenkins-

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