CVE-2026-59827 | Metabase: Unsafe Deserialization of H2 Query Results

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.

Published: 2026-07-09 Last update: 2026-07-13 Assigner: [email protected] Source: [email protected]
NVD Status：Analyzed，CVE State: published
View at NVD, CVE.org, EUVD

CVE-2026-59827 is rated Moderate Risk (52.5/100): CVSS Critical severity, with low exploitation likelihood (EPSS 0.46%). Review affected assets and schedule remediation.

Risk is dynamic; we continuously reassess and refresh what is shown on this page as upstream context changes.

Exploit prediction scoring system (EPSS) score for CVE-2026-59827

EPSS lead: Daily EPSS estimates relative likelihood of exploitation; percentile ranks this CVE among scored vulnerabilities (higher = more severe relative rank).

# Date Old EPSS score New EPSS score Delta (New - Old)
1 2026-07-14 0.45% 0.46% +0.01%
2 2026-07-10 — 0.45% —

Full EPSS history (2 records total)

Common vulnerability scoring system (CVSS) metrics for CVE-2026-59827

CVSS metrics for this CVE.

Base score Version Severity Vector Exploitability Impact Score source
9.9 3.1 CRITICAL
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:H/A:H Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:L)
A normal user session is enough; they don’t have to be admin.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:C)
Breaking this can reach past the original component and bite other resources—bigger blast radius.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 3.1 6.0 [email protected]
8.8 3.1 HIGH
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H Click to expand
Attack vector (AV:N)
Could be attacked over the internet or any normal routed network—not just someone sitting at the machine.
Attack complexity (AC:L)
Once they can reach the bug, pulling it off is straightforward—no weird race conditions or rare setup.
Privileges required (PR:L)
A normal user session is enough; they don’t have to be admin.
User interaction (UI:N)
Nobody has to click “OK” or open a trap file; it can work without a victim helping.
Scope (S:U)
Damage stays in the same “trust bubble” as the broken component—no big spill into unrelated systems.
Confidentiality (C:H)
Serious risk that confidential data gets exposed in a big way.
Integrity (I:H)
They could widely tamper with or forge data—trust in the data is badly hurt.
Availability (A:H)
Could take the service down hard or make it unusable for people who depend on it.
 2.8 5.9 [email protected]

Weakness enumeration for CVE-2026-59827

Affected software / configurations for CVE-2026-59827

Vendor Product Version Raw CPE
metabase metabase >= 0.58.0, < 0.58.15 cpe:2.3:a:metabase:metabase:*:*:*:*:-:*:*:*
metabase metabase >= 0.59.0, < 0.59.12 cpe:2.3:a:metabase:metabase:*:*:*:*:-:*:*:*
metabase metabase >= 0.60.0, < 0.60.6.3 cpe:2.3:a:metabase:metabase:*:*:*:*:-:*:*:*
metabase metabase >= 0.61.0, < 0.61.1.4 cpe:2.3:a:metabase:metabase:*:*:*:*:-:*:*:*
metabase metabase >= 1.58.0, < 1.58.15 cpe:2.3:a:metabase:metabase:*:*:*:*:enterprise:*:*:*
metabase metabase >= 1.59.0, < 1.59.12 cpe:2.3:a:metabase:metabase:*:*:*:*:enterprise:*:*:*
metabase metabase >= 1.60.0, < 1.60.6.3 cpe:2.3:a:metabase:metabase:*:*:*:*:enterprise:*:*:*
metabase metabase >= 1.61.0, < 1.61.1.4 cpe:2.3:a:metabase:metabase:*:*:*:*:enterprise:*:*:*

References for CVE-2026-59827

cvelogic Threat Intelligence