Org.jenkins ci.plugins:matrix auth: Jenkins Matrix Authorization Strategy Plugin: Unsafe deserialization allows
Affects org.jenkins-ci.plugins:matrix-authSource GCVE Database
Not known to be exploited · CVSS 6.5 Medium : upgrade to 3.2.10 when convenient.
Data as of 27 Oct 2026, 00:07 UTC
- Patch
- Available – fixed in 3.2.10
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:NExploitation evidence
Disclosed: evidence found.
CVE published 29 Apr 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.
What to do
Upgrade org.jenkins-ci.plugins:matrix-auth to 3.2.10.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| Mavenorg.jenkins-ci.plugins:matrix-auth | Affected
| Fixed in
|
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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. This can be abused by 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. Matrix Authorization Strategy Plugin 3.2.10 verifies that the class being instantiated is an inheritance strategy implementation, preventing instantiation of arbitrary types.