CVE-2026-34528
Unauthenticated self-signup can run shell commands in File Browser before 2.62.2.
Is CVE-2026-34528 being exploited?
Not confirmed. CVE-2026-34528 does not appear in CISA's Known Exploited Vulnerabilities catalog, which records only exploitation that has been observed and reported publicly. That is evidence of absence of a report, not evidence the flaw is unattacked. EPSS currently estimates a 0.65% probability of exploitation in the next 30 days.
How severe is CVE-2026-34528?
CVE-2026-34528 is rated High with a CVSS score of 8.1. Severity describes how bad exploitation would be, not how likely it is: pair it with exploitation evidence before deciding what to patch first.
Is there a patch for CVE-2026-34528?
Yes. A fix has been recorded for CVE-2026-34528. The vendor advisory is the authority on the exact fixed version — apply it from there rather than from a summary.
What does CVE-2026-34528 affect?
CVE-2026-34528 affects File Browser. Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-34528?
Upgrade to 2.62.2+; restrict open signup; audit exposed instances.
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
RCE via unauthenticated signup when default template Execute=true; attacker can run commands on the server.
Immediate action required
- affected< 2.62.2
As published in the CVE Program record. A version outside these ranges is not a statement that it is unaffected — vendors sometimes understate a range, and distribution-backported builds carry upstream numbers that do not reflect what was patched into them.