NetSight
IP …
high8.8

CVE-2026-53435

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 plug…

Impact

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.

Affected packages

EcosystemPackageAffectedFixed in
mavenorg.jenkins-ci.main:jenkins-core< 2.555.32.555.3

Affected products

VendorProductAffected versions
JenkinsJenkins
before 2.555.3
before 2.568

Weakness classification

CWE-502

References