EUVD-2026-42659Severity by source
AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Network-reachable and low-complexity, but requires an authenticated user with native-query rights (PR:L); deserialization yields full RCE, so C/I/A all High with unchanged scope.
Primary rating from Vendor (github).
CVSS VectorNVD
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
Lifecycle Timeline
8DescriptionNVD
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.
Articles & Coverage 2
AnalysisAI
Remote code execution in Metabase's H2 database driver allows an authenticated user with native-query privileges to run arbitrary Java on the server. When Metabase returns H2 result columns of type OTHER (JDBC JAVA_OBJECT), it deserializes the embedded Java object without validation, so a crafted native H2 query triggers CWE-502 unsafe deserialization and full server compromise. …
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Attack ChainAIDerived
Hypothetical attack flow derived from CVE metadata
Vulnerability AssessmentAI
| Exploitation | Requires an authenticated Metabase user (PR:L) who holds native-query / raw-SQL permission against a database served by the H2 engine - this includes the default bundled sample database present on most fresh installs, so the precondition is frequently met out of the box. … Additional conditions and limiting factors are described in the full assessment. |
| Risk Assessment | Signals are consistent and point to a targeted rather than mass-exploited issue. … Full risk analysis with EPSS, KEV, and SSVC signal comparison available after sign-in. |
| Exploit Scenario | An analyst account - or a compromised low-privilege user - with permission to run native SQL against Metabase's H2 sample database submits a crafted native H2 query whose result set includes a column of type OTHER carrying a malicious serialized Java gadget. When Metabase materializes the result via .getObject, the JVM deserializes the object and executes the gadget chain as the Metabase service account. … |
| Remediation | Vendor-released patch: upgrade to Metabase 1.58.15, 1.59.12, 1.60.6.3, or 1.61.1.4 (community tags v0.58.15, v0.59.12, v0.60.6.3, v0.61.1.4), which reject H2 columns of type JAVA_OBJECT instead of deserializing them (fix commit 00f42511fe3bc4385652a2e96862ee6fd7d42cf8); see the advisory at https://github.com/metabase/metabase/security/advisories/GHSA-w95f-x9v9-wv36 and the corresponding GitHub release tags. … Detailed patch versions, workarounds, and compensating controls in full report. |
Recommended ActionAI
Within 24 hours, identify and catalog all Metabase instances across the organization, distinguishing those using H2 database connections and assessing user populations with native query execution rights. …
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Threat intelligence, references, and detailed analysis are available after sign-in.
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Same weakness CWE-502 – Deserialization of Untrusted Data
View allSame technique Deserialization
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External POC / Exploit Code
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