Detections
Analytics
CVE-2026-53435
high
Description
In Jenkins 2.567 and earlier, LTS 2.555.2 and earlier, it is possible for attackers to have Jenkins deserialize arbitrary types defined in Jenkins core or plugins from an attacker-controlled `config.xml` submission in a way that allows them to handle HTTP requests afterwards. This can be used to impersonate any user and send HTTP requests on their behalf, up to and including use of the Script Console to run arbitrary code, or to read arbitrary files from the Jenkins controller.
References
https://github.com/av4nth1ka/cve-research-agent
https://www.jenkins.io/security/advisory/2026-06-10/#SECURITY-3707
https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-53435.json
https://bugzilla.redhat.com/show_bug.cgi?id=2487539
https://access.redhat.com/security/cve/CVE-2026-53435
https://access.redhat.com/errata/RHSA-2026:60259
https://access.redhat.com/errata/RHSA-2026:60256
https://access.redhat.com/errata/RHSA-2026:60254
https://access.redhat.com/errata/RHSA-2026:60252
https://access.redhat.com/errata/RHSA-2026:60251
https://access.redhat.com/errata/RHSA-2026:60250
https://access.redhat.com/errata/RHSA-2026:60249
https://access.redhat.com/errata/RHSA-2026:60248
https://access.redhat.com/errata/RHSA-2026:60247