NocoBase up to 2.1.18 Backup Management _metadata.json exec database.schema os command injection

Summaryinfo

A vulnerability was found in NocoBase up to 2.1.18. It has been classified as problematic. This issue affects the function exec of the file _metadata.json of the component Backup Management. This manipulation of the argument database.schema causes os command injection. This vulnerability is registered as CVE-2026-55410. Remote exploitation of the attack is possible. No exploit is available.

Detailsinfo

A vulnerability classified as problematic was found in NocoBase up to 2.1.18. Affected by this vulnerability is the function exec of the file _metadata.json of the component Backup Management. The manipulation of the argument database.schema with an unknown input leads to a os command injection vulnerability. The CWE definition for the vulnerability is CWE-78. The product constructs all or part of an OS command using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify the intended OS command when it is sent to a downstream component. As an impact it is known to affect confidentiality, integrity, and availability. The summary by CVE is:

NocoBase is an AI-powered no-code/low-code platform for building business applications and enterprise solutions. Prior to 2.1.19, NocoBase @nocobase/plugin-backups restored PostgreSQL backups by interpolating the database.schema value from _metadata.json into shell command strings executed with Node.js child_process.exec(), allowing a backup-management user restoring a crafted backup to execute commands as the NocoBase server process. This vulnerability is fixed in 2.1.19.

The advisory is shared at github.com. This vulnerability is known as CVE-2026-55410 since 06/16/2026. The exploitation appears to be easy. The attack can be launched remotely. The exploitation requires an enhanced level of successful authentication. It demands that the victim is doing some kind of user interaction. Technical details are known, but no exploit is available. MITRE ATT&CK project uses the attack technique T1202 for this issue.

By approaching the search of inurl:_metadata.json it is possible to find vulnerable targets with Google Hacking.

Upgrading to version 2.1.19 eliminates this vulnerability.

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Productinfo

Name

• NocoBase

Version

• 2.1.0
• 2.1.1
• 2.1.2
• 2.1.3
• 2.1.4
• 2.1.5
• 2.1.6
• 2.1.7
• 2.1.8
• 2.1.9
• 2.1.10
• 2.1.11
• 2.1.12
• 2.1.13
• 2.1.14
• 2.1.15
• 2.1.16
• 2.1.17
• 2.1.18

Website

• Product: https://github.com/nocobase/nocobase/

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