CVE-2026-55664: CWE-200: Exposure of Sensitive Information to an Unauthorized Actor in gristlabs grist-core
Grist is spreadsheet software using Python as its formula language. Prior to 1.7.15, the GET /forms endpoint read table and column metadata without applying the document's access rules and did not check that the requested section was actually a form. A user with only partial read access, including public access on a publicly viewable document, could request the metadata of any widget and reveal table and column structure that access rules would otherwise hide, even in documents that contain no forms. This 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 endpoint returns table and column metadata without enforcing the document's access rules or validating that the requested section is a form. This allows users with limited read permissions, including public access on publicly viewable documents, to access metadata that should be restricted. The vulnerability does not affect document integrity or availability but leaks structural information that access controls intend to protect. The issue is resolved in version 1.7.15.
Potential Impact
An attacker with partial read access can obtain metadata about tables and columns that should be hidden by access controls. This exposure of sensitive information may aid in further reconnaissance or targeted attacks but does not allow modification or denial of service. There are no known exploits in the wild.
Mitigation Recommendations
Upgrade grist-core to version 1.7.15 or later, where this vulnerability is fixed. Patch status is confirmed by the vendor stating the fix in 1.7.15. No additional mitigations are indicated.
CVE-2026-55664: CWE-200: Exposure of Sensitive Information to an Unauthorized Actor in gristlabs grist-core
Description
Grist is spreadsheet software using Python as its formula language. Prior to 1.7.15, the GET /forms endpoint read table and column metadata without applying the document's access rules and did not check that the requested section was actually a form. A user with only partial read access, including public access on a publicly viewable document, could request the metadata of any widget and reveal table and column structure that access rules would otherwise hide, even in documents that contain no forms. This 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 endpoint returns table and column metadata without enforcing the document's access rules or validating that the requested section is a form. This allows users with limited read permissions, including public access on publicly viewable documents, to access metadata that should be restricted. The vulnerability does not affect document integrity or availability but leaks structural information that access controls intend to protect. The issue is resolved in version 1.7.15.
Potential Impact
An attacker with partial read access can obtain metadata about tables and columns that should be hidden by access controls. This exposure of sensitive information may aid in further reconnaissance or targeted attacks but does not allow modification or denial of service. There are no known exploits in the wild.
Mitigation Recommendations
Upgrade grist-core to version 1.7.15 or later, where this vulnerability is fixed. Patch status is confirmed by the vendor stating the fix in 1.7.15. No additional mitigations are indicated.
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: 07/18/2026, 15:24:14 UTC
Last updated: 08/23/2026, 10:52:09 UTC
Views: 70
Community Reviews
0 reviewsCrowdsource mitigation strategies, share intel context, and vote on the most helpful responses. Sign in to add your voice and help keep defenders ahead.
Want to contribute mitigation steps or threat intel context? Sign in or create an account to join the community discussion.
Actions
Updates to AI analysis require Pro Console access. Upgrade inside Console → Billing.
Need more coverage?
Upgrade to Pro Console for AI refresh and higher limits.
For incident response and remediation, OffSeq services can help resolve threats faster.
Latest Threats
Check if your credentials are on the dark web
Instant breach scanning across billions of leaked records. Free tier available.