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.
No summary for this CVE yet.
CVSS Vector Breakdown
Exploitability
AV:NAttack VectorNetwork
AC:LAttack ComplexityLow
PR:LPrivileges RequiredLow
UI:NUser InteractionNone
Scope
S:UScopeUnchanged
Impact
C:HConfidentialityHigh
I:HIntegrityHigh
A:HAvailabilityHigh
Weaknesses
Affected Products
Jenkins Project
oss-project·USaka jenkins, jenkins ci
CD Foundation
oss-project·USaka c d foundation, cdu foundation
and 1 more affected products View all →
Exploitability
Official Patch Available
Attack Graph
Products CVE Techniques Tactics
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MITRE ATT&CK
3 techniques Execution
Initial Access
References
https://www.jenkins.io/security/advisory/2026-06-10/#SECURITY-3707
jenkins.io
https://access.redhat.com/security/cve/CVE-2026-53435
access.redhat.com
https://bugzilla.redhat.com/show_bug.cgi?id=2487539
bugzilla.redhat.com
and 4 more references View all →
News mentions
3- 2,060 New CVEs and 4 Actively Exploited Flaws (June 15-21, 2026)en-us·Daily CyberSecurity (securityonline.info)· Exploited Splunk Enterprise zero-day
- Jenkins RCE Vulnerability CVE-2026-53435 Now Under Active Exploitationen-us·Daily CyberSecurity (securityonline.info)· Exploited Jenkins (controllers) rce
- Critical Jenkins Security Advisory 2026: Patch Multiple Flawsen-us·Daily CyberSecurity (securityonline.info)· Patch Jenkins rce
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