CRITICALMaven →
Jenkins arbitrary type deserialization from attacker-controlled config.xml allows remote code execution and user impersonation
Jenkins arbitrary type deserialization from attacker-controlled config.xml allows remote code execution and user impersonation
Affected packages
- org.jenkins-ci.main:jenkins-core— before 2.555.3
Exploit signal
- Known exploited (CISA KEV)
- No
- EPSS score
- —
- EPSS percentile
- —
EPSS is the probability a CVE is exploited in the wild; percentile is its rank among all CVEs.
Sources
- https://nvd.nist.gov/vuln/detail/CVE-2026-53435
- https://github.com/jenkinsci/jenkins/commit/345a3190a49d1ac96c4ff1c2e9eef4102c8d63f6
- https://github.com/jenkinsci/jenkins/commit/d739f6a6266d
- https://access.redhat.com/security/cve/CVE-2026-53435
- https://bugzilla.redhat.com/show_bug.cgi?id=2487539
- https://github.com/jenkinsci/jenkins
- https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-53435.json
- https://www.jenkins.io/security/advisory/2026-06-10/#SECURITY-3707
Structured record: https://osv.dev/vulnerability/GHSA-g2xq-2v27-4rh3
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