CVE-2026-53435
8.8
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Summary
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 Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Jenkins Project | Jenkins | 2.568 < * | unaffected |
| Jenkins Project | Jenkins | 2.555.3 < 2.555.* | unaffected |
Weaknesses
ADP Enrichment
CISA ADP Vulnrichment
- SSVC:
- Exploitation: none
- Automatable: no
- Technical Impact: total
jenkins: Jenkins: Arbitrary code execution via deserialization of attacker-controlled configuration
Additional References
- https://access.redhat.com/security/cve/CVE-2026-53435
- https://bugzilla.redhat.com/show_bug.cgi?id=2487539
- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-53435.json
References
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