CVE-2026-59827CWE-502

Metabase: Unsafe Deserialization of H2 Query Results

Critical · published July 9, 2026

CVSS v3.1
9.9
EPSS
4%
Percentile
89.9
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
9.9 · CRITICAL
Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H
CVSS v4.0
Not supplied
EPSS
0.03788 · 89.9th percentile
Weakness
CWE-502 · Deserialization of Untrusted Data
Published
2026-07-09T17:43Z
EPSS history
Timeline
  • 09 JUL 17:43Z
    Metabase: Unsafe Deserialization of H2 Query Results
    cvelistv5