{ "threat_severity" : "Moderate", "public_date" : "2026-09-01T00:00:00Z", "bugzilla" : { "description" : "pulpcore: python-pulpcore: Stored cross-site scripting via inline rendering of uploaded HTML/SVG content", "id" : "2526807", "url" : "https://bugzilla.redhat.com/show_bug.cgi?id=2526807" }, "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" : [ "A flaw was found in pulpcore's content serving application. Files uploaded to Pulp file-type repositories are served with their original content type (e.g., text/html for .html files, image/svg+xml for .svg files) and without a Content-Disposition: attachment header when using local filesystem storage. An authenticated user or attacker with content upload permissions can upload a specially crafted HTML or SVG file containing JavaScript, which executes in the browser of any user who visits the file URL, resulting in stored cross-site scripting (XSS) in the context of the host application.", "A flaw was found in pulpcore's content serving application. Files uploaded to Pulp file-type repositories are served with their original content type (e.g., text/html for .html files, image/svg+xml for .svg files) and without a Content-Disposition: attachment header when using local filesystem storage. An authenticated user or attacker with content upload permissions can upload a specially crafted HTML or SVG file containing JavaScript, which executes in the browser of any user who visits the file URL, resulting in stored cross-site scripting (XSS) in the context of the host application." ], "statement" : "Red Hat Product Security has assessed this issue as a Moderate severity vulnerability. \nThis vulnerability affects pulpcore's content serving application, which is an aiohttp process separate from the Django REST API.\nThe confidentiality and integrity impact is limited because the session cookie in the host application (Foreman/Satellite) is set with the HttpOnly attribute, which prevents direct session token theft via JavaScript. The attacker's script can read visible page content and make authenticated API requests on behalf of the victim through the browser, but cannot exfiltrate the session itself or gain persistent access beyond the victim's active browser session. There is no availability impact.\n```\nIn Red Hat Satellite, the /pulp/content/ path shares the same origin (protocol, hostname, and port) as the Satellite web UI, making the XSS effective against Satellite sessions. \n```\n```\nAnsible Automation Platform and RHUI also ship pulpcore, but they do not use pulp_file repositories and therefore are not affected by this vulnerability.\n```", "package_state" : [ { "product_name" : "Red Hat Ansible Automation Platform 2", "fix_state" : "Not affected", "package_name" : "ansible-automation-platform-24/hub-rhel8", "cpe" : "cpe:/a:redhat:ansible_automation_platform:2" }, { "product_name" : "Red Hat Ansible Automation Platform 2", "fix_state" : "Not affected", "package_name" : "ansible-automation-platform-25/hub-rhel8", "cpe" : "cpe:/a:redhat:ansible_automation_platform:2" }, { "product_name" : "Red Hat Ansible Automation Platform 2", "fix_state" : "Not affected", "package_name" : "ansible-automation-platform-26/hub-rhel9", "cpe" : "cpe:/a:redhat:ansible_automation_platform:2" }, { "product_name" : "Red Hat Ansible Automation Platform 2", "fix_state" : "Not affected", "package_name" : "ansible-automation-platform-27/hub-rhel9", "cpe" : "cpe:/a:redhat:ansible_automation_platform:2" }, { "product_name" : "Red Hat Ansible Automation Platform 2", "fix_state" : "Not affected", "package_name" : "python3.11-pulpcore", "cpe" : "cpe:/a:redhat:ansible_automation_platform:2" }, { "product_name" : "Red Hat Ansible Automation Platform 2", "fix_state" : "Not affected", "package_name" : "python3.12-pulpcore", "cpe" : "cpe:/a:redhat:ansible_automation_platform:2" }, { "product_name" : "Red Hat Ansible Automation Platform 2", "fix_state" : "Not affected", "package_name" : "python3x-pulpcore", "cpe" : "cpe:/a:redhat:ansible_automation_platform:2" }, { "product_name" : "Red Hat Ansible Automation Platform 2", "fix_state" : "Not affected", "package_name" : "python-pulpcore", "cpe" : "cpe:/a:redhat:ansible_automation_platform:2" }, { "product_name" : "Red Hat Satellite 6", "fix_state" : "Affected", "package_name" : "python3.12-pulpcore", "cpe" : "cpe:/a:redhat:satellite:6" }, { "product_name" : "Red Hat Satellite 6", "fix_state" : "Affected", "package_name" : "python-pulpcore", "cpe" : "cpe:/a:redhat:satellite:6" }, { "product_name" : "Red Hat Update Infrastructure 4 for Cloud Providers", "fix_state" : "Not affected", "package_name" : "python-pulpcore", "cpe" : "cpe:/a:redhat:rhui:4::el8" }, { "product_name" : "Red Hat Update Infrastructure 5", "fix_state" : "Not affected", "package_name" : "rhui5/rhua-rhel9", "cpe" : "cpe:/a:redhat:rhui:5::el9" }, { "product_name" : "Red Hat Update Infrastructure 5", "fix_state" : "Not affected", "package_name" : "rhui5/rhua-tp-rhel9", "cpe" : "cpe:/a:redhat:rhui:5::el9" } ], "references" : [ "https://www.cve.org/CVERecord?id=CVE-2026-84232\nhttps://nvd.nist.gov/vuln/detail/CVE-2026-84232" ], "name" : "CVE-2026-84232", "mitigation" : { "value" : "If immediate update is not possible, administrators can add security headers to the Apache reverse proxy configuration for the /pulp/content/ path. On Satellite, add the following to the Apache configuration (e.g., via a custom .conf file in /etc/httpd/conf.d/ or via a Puppet override):\n```\n\nHeader set Content-Disposition \"attachment\"\nHeader set X-Content-Type-Options \"nosniff\"\nHeader set Content-Security-Policy \"default-src 'none'; sandbox\"\n\n```\nThis forces all content downloads rather than inline rendering, and blocks script execution even if Content-Disposition is somehow bypassed.\nAfter applying, restart Apache: ```systemctl restart httpd```\nAlternatively, restrict file upload permissions in Satellite to only trusted users who require content management capabilities.", "lang" : "en:us" }, "csaw" : false }