CVE-2026-59826
Authenticated admin can register crafted H2 DB and achieve RCE on Metabase server.
Is CVE-2026-59826 being exploited?
Not confirmed. CVE-2026-59826 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 0.54% probability of exploitation in the next 30 days.
How severe is CVE-2026-59826?
CVE-2026-59826 is rated Critical with a CVSS score of 9.1. 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-2026-59826?
Yes. A fix has been recorded for CVE-2026-59826. The vendor advisory is the authority on the exact fixed version — apply it from there rather than from a summary.
What does CVE-2026-59826 affect?
CVE-2026-59826 affects Metabase versions >=1.55.0 and prior to fixes: <1.58.15.1, <1.59.12, <1.60.6.3, <1.61.2. Confirm the exact affected versions against the vendor advisory before deciding you are exposed.
What should I do about CVE-2026-59826?
Upgrade to patched Metabase releases; restrict admin access; rotate credentials; audit logs.
Exploitation status reflects CISA's KEV catalog as we last synced it. Check the catalog directly.
Authenticated administrator can execute arbitrary Java code on the Metabase server via a crafted H2 DB connection, enabling full server compromise and data access.
Immediate action required
- affected>= 1.55.0 and < 1.58.15.1
- affected>= 1.59.0 and < 1.59.12
- affected>= 1.60.0 and < 1.60.6.3
- affected>= 1.61.0 and < 1.61.2
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.