CVE-2025-64752: grist-core has path to server-side requests via websocket

Severity: medium (CVSS 6.5 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.2% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2025-11-13 · updated 2026-10-18
Weakness: CWE-918

Description

grist-core is a spreadsheet hosting server. Prior to version 1.7.7, a user with access to any document on a Grist installation can use a feature for fetching from a URL that is executed on the server. The privileged network access of server-side requests could offer opportunities for attack escalation. This issue is fixed in version 1.7.7. The mitigation was to use the proxy for untrusted fetches intended for such purposes. As a workaround, avoid making http/https endpoints available to an instance running Grist that expose credentials or operate without credentials.

Affected products

gristlabs grist-core: before 1.7.7 — fixed in 1.7.7

How to fix

Upgrade to a fixed version: gristlabs grist-core 1.7.7. Check the vendor advisory for mitigations.

References

Get alerted when CVE-2025-64752 or the next vulnerability affects your stack