CVE-2026-62378
Stored XSS in RustFS Console PDF preview exposes admin cloud keys
Is CVE-2026-62378 being exploited?
Not confirmed. CVE-2026-62378 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 0.49% probability of exploitation in the next 30 days.
How severe is CVE-2026-62378?
CVE-2026-62378 is rated Critical with a CVSS score of 9.0. 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-2026-62378?
Yes. A fix has been recorded for CVE-2026-62378. The vendor advisory is the authority on the exact fixed version — apply it from there rather than from a summary.
What does CVE-2026-62378 affect?
CVE-2026-62378 affects RustFS Console <= 0.1.9 (fixed in 0.1.10), components/object/preview-modal.tsx, components/object/pdf-viewer.tsx. Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-62378?
Upgrade to RustFS Console 0.1.10; rotate exposed AWS keys; audit uploads and access logs.
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
Stored XSS in PDF preview can exfiltrate AccessKeyId/SecretAccessKey/SessionToken, enabling cloud account/resource takeover.
Immediate action required
- affected>= 0.1.7 and < 0.1.10
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.