How broadly exploitable is this vulnerability?

Exploitation is limited to environments where an attacker can obtain admin-level access to a Metabase Enterprise instance that exposes the serialization import endpoint. It is not a drive-by remote exploit but is serious in scenarios where admin accounts can be phished, shared, or otherwise compromised.

Does an attacker need authenticated access to exploit this?

Yes. The attack requires a valid authenticated admin user in Metabase Enterprise to submit a crafted archive to `POST /api/ee/serialization/import`. Without admin access or equivalent control over the enterprise API, the vulnerable code path is not normally reachable.

What is the safest general fix pattern for developers?

The safest approach is to avoid deserializing untrusted data into complex runtime objects and never let deserialized content directly drive security-sensitive configuration such as JDBC URLs or H2 `INIT` properties. Instead, employ strict schema validation, enforce allowlists for configuration fields, and decouple importable data from low-level database or execution settings.

Severity:

HIGH RISK

(7.2)

Unsafe Serialization Import (CWE-502) Leading to RCE in Metabase Enterprise H2 Sync

CVE-2026-33725

Published:

Mar 26, 2026

Status:

Analyzed

Summary

Affected Context

Exploit Preconditions

Why This Happens

Potential Impact

General Mitigation Guidance

How Teams Detect Issues Like This

Frequently Asked Questions

Source

NDV

Recent Vulnerabilities

CWE-77;CWE-78

HIGH RISK

HIGH

(7.3)

OS Command Injection (CWE-78) in Totolink A7100RU setGameSpeedCfg CGI Handler

Remote Code Execution on the Router

April 6, 2026

CWE-77;CWE-78

HIGH RISK

HIGH

(7.3)

OS Command Injection (CWE-78) in Totolink A7100RU setFirewallType Handler

Remote Code Execution on Router Firmware

April 6, 2026

Vulnerability Type

Category:

Unsafe Deserialization

CWE:

CWE-502

Impact:

Remote Code Execution and Arbitrary File Read

Severity:

HIGH RISK

(7.2)

CVSS Version:

3.1

Vulnerability Type

Category:

Unsafe Deserialization

CWE:

CWE-502

Impact:

Remote Code Execution and Arbitrary File Read

Severity:

HIGH RISK

(7.2)

CVSS Version:

3.1

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Unsafe Serialization Import (CWE-502) Leading to RCE in Metabase Enterprise H2 Sync

Summary

Affected Context

Exploit Preconditions

Why This Happens

Potential Impact

General Mitigation Guidance

How Teams Detect Issues Like This

Frequently Asked Questions

Source

Recent Vulnerabilities

HIGH RISK

HIGH

(7.3)

OS Command Injection (CWE-78) in Totolink A7100RU setGameSpeedCfg CGI Handler

HIGH RISK

HIGH

(7.3)

OS Command Injection (CWE-78) in Totolink A7100RU setFirewallType Handler

Vulnerability Type

Vulnerability Type

Vulnerability Type

Catch This CVE While Code Is Being Written

Ship clean & secure code faster

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