High severity · published Jul 9, 2026
CVE-2026-59827
Metabase: Unsafe Deserialization of H2 Query Results
8.8
CVSS
3.8%
EPSS
No
On KEV
Description
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.
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Attack vector
Network
Complexity
Low
Privileges
Low
User interaction
None
Confidentiality
High
Integrity
High
Availability
High
Scope
Unchanged
Exploitation
Is it being used?
Exploit prediction (EPSS)3.8% · higher than 90% of CVEs
Exploited in the wildNo evidence yet
CISA KEVNot listed
Ransomware campaign useNot known
Affected products
Which versions
ME
metabase · metabase
>= 1.58.0, < 1.58.15; >= 1.59.0, < 1.59.12; >= 1.60.0, < 1.60.6.3; >= 1.61.0, < 1.61.1.4 · source: vendor, NVD
References
NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-59827
CVE.org
https://www.cve.org/CVERecord?id=CVE-2026-59827
Patch
https://github.com/metabase/metabase/commit/00f42511fe3bc4385652a2e96862ee6fd7d42cf8
Release Notes
https://github.com/metabase/metabase/releases/tag/v0.58.15
Release Notes
https://github.com/metabase/metabase/releases/tag/v0.59.12
Release Notes
https://github.com/metabase/metabase/releases/tag/v0.60.6.3
Release Notes
https://github.com/metabase/metabase/releases/tag/v0.61.1.4
Vendor Advisory
https://github.com/metabase/metabase/security/advisories/GHSA-w95f-x9v9-wv36
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