Description
Jenkins 2.587 and earlier, LTS 2.580.1 and earlier does not apply its deserialization filter to classes referenced by the `resolves-to` attribute during XStream deserialization.
Affected products
jenkins: jenkins
References1
- www.jenkins.io/security/advisory/2026-10-28/#SECURITY-4125 MitigationVendor Advisory
Metrics
- CVSS 3.1
-
8.8
HIGH
Score source: NVD
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H - EPSS — exploit probability
- 0% percentile: 35 · as of 3 November 2026
- CWE
- CWE-502
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