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{"bugzilla": {"description": "jenkins: Jenkins: Cross-site scripting via agent HTTP response exceptions", "id": "2562991", "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2562991"}, "csaw": false, "cvss3": {"cvss3_base_score": "5.4", "cvss3_scoring_vector": "CVSS:3.1/AV:N/AC:L/PR:L/UI:R/S:C/C:L/I:L/A:N", "status": "draft"}, "cwe": "CWE-79", "details": ["Jenkins 2.587 and earlier, LTS 2.580.1 and earlier allows agents to send exceptions implementing the Stapler HttpResponse interface to the controller, resulting in a cross-site scripting (XSS) vulnerability exploitable by attackers in control of agent processes.", "A flaw was found in Jenkins. An attacker in control of an agent process can exploit a cross-site scripting (XSS) vulnerability on the controller. By transmitting crafted exceptions that implement the HTTP response interface to the controller, malicious content is served to users accessing the application. This flaw enables attackers to execute arbitrary script code within an authenticated user's browser session, potentially leading to session hijacking or unauthorized administrative actions."], "name": "CVE-2026-117622", "public_date": "2026-10-28T16:48:34Z", "references": ["https://www.cve.org/CVERecord?id=CVE-2026-117622\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-117622\nhttps://www.jenkins.io/security/advisory/2026-10-28/#SECURITY-4249"], "statement": "This vulnerability is rated as having Moderate severity for Red Hat products because triggering it requires preexisting control over a build agent environment and subsequent victim interaction on the controller. In typical Red Hat OpenShift or standalone Jenkins deployments, agents communicate remotely with the primary controller instance during build executions. Although a compromised build node can return crafted error responses that cause the controller to reflect client-side scripts, exploitation is constrained by the necessity of an active administrator or developer browsing the affected controller interface.", "threat_severity": "Moderate"}

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