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8.8 High

CVE-2026-53435 In Jenkins 2.567 and earlier, LTS 2.555.2 and earlier, it is possible for attackers to have Jenkins deserialize…

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.

Affected products and versions

Product Affected versions Fixed in
Jenkins 2.568 earliest → < 2.568 2.568
Jenkins 2.555 earliest → < 2.555.3 2.555.3
OpenShift Developer Tools and Services Versions not published
OpenShift Developer Tools and Services 4.12 1786628667 earliest → < 1786628667 1786628667
OpenShift Developer Tools and Services 4.13 1786628681 earliest → < 1786628681 1786628681
OpenShift Developer Tools and Services 4.14 1786533561 earliest → < 1786533561 1786533561
OpenShift Developer Tools and Services 4.15 1786533565 earliest → < 1786533565 1786533565
OpenShift Developer Tools and Services 4.16 1787125166 earliest → < 1787125166 1787125166
OpenShift Developer Tools and Services 4.17 1787124635 earliest → < 1787124635 1787124635
Show the 5 other branches
Product Affected versions Fixed in
OpenShift Developer Tools and Services 4.18 1787125069 earliest → < 1787125069 1787125069
OpenShift Developer Tools and Services 4.19 1787124632 earliest → < 1787124632 1787124632
OpenShift Developer Tools and Services 4.20 1787124925 earliest → < 1787124925 1787124925
OpenShift Developer Tools and Services 4.21 1787125311 earliest → < 1787125311 1787125311
OpenShift Developer Tools and Services 4.22 1787124779 earliest → < 1787124779 1787124779

References

Timeline

  1. Published
  2. Last modified

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