cve-2026-53435

{
  "cvss": 8.8,
  "datePublished": "2026-06-15T00:00:00Z",
  "dateUpdated": "2026-06-15T00:00:00Z",
  "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.\nThis 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.",
  "dueDate": "",
  "id": "CVE-2026-53435",
  "kev_catalogs": [
    "vulncheck"
  ],
  "knownRansomwareCampaignUse": "Unknown",
  "product": "Jenkins",
  "requiredAction": "Apply remediations or mitigations per vendor instructions or discontinue use of the product if remediation or mitigations are unavailable.",
  "severity": "HIGH",
  "source": "vulncheck_kev",
  "title": "Jenkins Jenkins Deserialization of Untrusted Data",
  "vendor": "Jenkins"
}