Medium [CVE-2026-13083] stored XSS via unescaped cluster data in HTML report
This medium-severity Red Hat Linux advisory covers CVE-2026-13083 affecting Pen Drive Powered by Red Hat Lightspeed.
Aggregated and source-linked by VulniPulse. Data sources, validation and limitations.
VulniPulse record published Record updated
Summary
A flaw was found in the Pen Drive report generator. Cluster-sourced data is rendered into HTML reports without proper escaping or sanitization.
An attacker with cluster administrator privileges can inject a stored cross-site scripting (XSS) payload into cluster objects (such as ClusterVersion spec.channel) that executes in the browser of any user who opens the generated HTML report. This flaw affects Pen Drive versions prior to 1.0.0-2.
The vulnerability requires cluster administrator privileges to inject the XSS payload and user interaction (opening the report) for exploitation, limiting the attack surface. Red Hat severity: Moderate — CVSS 6.9 (CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:H/I:L/A:N).
Weakness: CWE-79. Affected Red Hat products: Pen Drive Powered by Red Hat Lightspeed.
Red Hat does not currently list a fixing RHSA for this CVE.
Is CVE-2026-13083 exploited?
No exploitation is reported in the sources VulniPulse tracks: CVE-2026-13083 is not in the CISA KEV catalog (checked ) and this advisory does not report exploitation. That is not proof the vulnerability cannot be exploited.
How do I fix CVE-2026-13083?
The advisory VulniPulse tracks names no fixed release. Follow Red Hat's guidance for workarounds and updates.
Confirm against the vendor advisory before you patch.
Affected versions
No affected-version range was extracted from the source record. The vendor advisory is authoritative. Check it before change work.
Official advisory · high-confidence parse· fetched 14 days ago·verify at source
Fixed versions
No fixed release is recorded yet. That does not prove no patch exists. Confirm against the vendor advisory.
Official advisory · high-confidence parse· fetched 14 days ago·verify at source
Mitigation checklist
- The following practices would help for avoiding exposure and mitigate this flaw: - Upgrade Pen Drive to version 1.0.0-2 or later, which reportedly contains the fix. - Until upgraded, review HTML reports generated by Pen Drive before opening them in a browser, or open them in a sandboxed browser environment. - If using must-gather archives from untrusted sources, validate the archive content before feeding it to Pen Drive. - Consider opening Pen Drive reports with JavaScript disabled in the browser.
Official advisory · high-confidence parse· fetched 14 days ago·verify at source
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