Vulnerability · Published Jul 10, 2026 · Assigned by GitHub_M
CVE-2026-55664Grist: Insufficient access control in the /forms endpoint exposes table metadata
Medium 4.3
In plain English
A medium-severity information exposure in grist-core from gristlabs. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 26% of all known vulnerabilities).
Official 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.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| gristlabs | grist-core | < 1.7.15 |
Weakness: CWE-200, CWE-285 · Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N