Vulnerability Intelligence Report
Metabase: Unsafe Deserialization of H2 Query Results
CVE-2026-59827
Metabase is an open-source business intelligence and embedded analytics tool. Prior to 1.58.15, 1.59.12, 1.60.6.3, and 1.61.1.4, Metabase instances with an H2 database connection, including the default sample database, deserialize arbitrary Java objects returned in H2 native query result columns of type OTHER without validation, allowing an authenticated user who can run native H2 queries to execute code on the Metabase server. This issue is fixed in versions 1.58.15, 1.59.12, 1.60.6.3, and 1.61.1.4.
Deserialization
No Active Exploit Signals
CVSS Base Score
9.9
CRITICAL
Exploitability:3.2
Impact Score:6.1
EPSS Probability:0.45%
Executive Threat Verdict
Evaluating...
Evaluating Threat Landscape...
Assessing known weaponization, exploitation telemetry, and federal advisories.
Attack Surface
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Authentication
—
Weaponization
—
SSVC Action
—
Weaknesses (CWE)
CWE-502 ↗CWE-502: Deserialization of Untrusted Data
Affected Products & Versions
| Vendor | Product | Affected Versions |
|---|---|---|
| metabase | metabase | >= 1.58.0, < 1.58.15 (affected), >= 1.59.0, < 1.59.12 (affected), >= 1.60.0, < 1.60.6.3 (affected), >= 1.61.0, < 1.61.1.4 (affected) |
Threat Intelligence Signals
EPSS Score
0.447%
Vulnerability Class
Deserialization
Identity & Timeline
| Status | PUBLISHED |
| Assigning Authority | GitHub, Inc. · Vendor · USA |
| Reserved | 2026-07-07T15:00:50 |
| Published | 2026-07-09T17:43:57 |
| Last Updated | 2026-07-09T18:24:48 |
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