CVE-2026-55664: CWE-200: Exposure of Sensitive Information to an Unauthorized Actor in gristlabs grist-core
A vulnerability in gristlabs grist-core prior to version 1.7.15 allows users with partial read access to retrieve table and column metadata via the GET /forms endpoint without proper access control. This exposure occurs because the endpoint does not enforce document access rules or verify that the requested section is a form, potentially revealing sensitive structural information even in documents without forms. The issue is fixed in version 1.7.15.
AI Analysis
Technical Summary
Grist-core versions before 1.7.15 have an information exposure vulnerability (CWE-200) where the GET /forms API endpoint returns table and column metadata without enforcing the document's access rules and without confirming that the requested section is a form. This allows users with limited read permissions, including public users on publicly viewable documents, to access metadata that should be restricted, revealing database schema details. The vulnerability does not affect document integrity or availability and is addressed by proper access validation in version 1.7.15.
Potential Impact
The vulnerability allows unauthorized disclosure of sensitive metadata about tables and columns within grist-core documents. This exposure could aid an attacker in understanding the data structure and potentially facilitate further attacks or data leakage. However, it does not allow modification or deletion of data, nor does it affect system availability.
Mitigation Recommendations
Upgrade grist-core to version 1.7.15 or later, where this issue is fixed by enforcing access controls on the GET /forms endpoint and verifying that requested sections are valid forms. No other mitigation is indicated or required.
CVE-2026-55664: CWE-200: Exposure of Sensitive Information to an Unauthorized Actor in gristlabs grist-core
Description
A vulnerability in gristlabs grist-core prior to version 1.7.15 allows users with partial read access to retrieve table and column metadata via the GET /forms endpoint without proper access control. This exposure occurs because the endpoint does not enforce document access rules or verify that the requested section is a form, potentially revealing sensitive structural information even in documents without forms. The issue is fixed in version 1.7.15.
CVSS v3.1
Score 4.3medium
Affected software
pkg:github/gristlabs/grist-coreRun on your own infrastructure? Check whether these packages are installed with threat-finder — our free open-source scanner.
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
Grist-core versions before 1.7.15 have an information exposure vulnerability (CWE-200) where the GET /forms API endpoint returns table and column metadata without enforcing the document's access rules and without confirming that the requested section is a form. This allows users with limited read permissions, including public users on publicly viewable documents, to access metadata that should be restricted, revealing database schema details. The vulnerability does not affect document integrity or availability and is addressed by proper access validation in version 1.7.15.
Potential Impact
The vulnerability allows unauthorized disclosure of sensitive metadata about tables and columns within grist-core documents. This exposure could aid an attacker in understanding the data structure and potentially facilitate further attacks or data leakage. However, it does not allow modification or deletion of data, nor does it affect system availability.
Mitigation Recommendations
Upgrade grist-core to version 1.7.15 or later, where this issue is fixed by enforcing access controls on the GET /forms endpoint and verifying that requested sections are valid forms. No other mitigation is indicated or required.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- GitHub_M
- Date Reserved
- 2026-06-17T00:05:03.777Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- null
Threat ID: 6a515e2368715ace43325a0d
Added to database: 07/10/2026, 21:03:31 UTC
Last enriched: 07/10/2026, 21:18:06 UTC
Last updated: 07/11/2026, 00:22:55 UTC
Views: 7
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