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CVE-2026-24002

pyodide sandbox option is insecure

Grist is spreadsheet software using Python as its formula language. Grist offers several methods for running those formulas in a sandbox, for cases where the user may be working with untrusted spreadsheets. One such method runs them in pyodide, but pyodide on node does not have a useful sandbox barrier. If a user of Grist sets `GRIST_SANDBOX_FLAVOR` to `pyodide` and opens a malicious document, that document could run arbitrary processes on the server hosting Grist. The problem has been addressed in Grist version 1.7.9 and up, by running pyodide under deno. As a workaround, a user can use the gvisor-based sandbox by setting `GRIST_SANDBOX_FLAVOR` to `gvisor`.

CVSS 3.1 · 9.1 Critical EPSS < 1% KEV · Not listed
Vendors
Getgrist Gristlabs
Products
Grist-core Grist-core
CVE-2025-64752

grist-core has path to server-side requests via websocket

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.

CVSS 3.1 · 6.8 Medium EPSS < 1% KEV · Not listed
Vendors
Getgrist
Products
Grist-core
CVE-2025-64753

grist-core has insufficient access control in endpoints for comparisons between documents and versions

grist-core is a spreadsheet hosting server. Prior to version 1.7.7, a user with only partial read access to a document could still access endpoints listing hashes for versions of that document and receive a full list of changes between versions, even if those changes contained cells, columns, or tables to which the user was not supposed to have read access. This was fixed in version 1.7.7 by restricting the `/compare` endpoint to users with full read access. As a workaround, remove sensitive document history using the `/states/remove` endpoint. Another possibility is to block the `/compare` endpoint.

CVSS 3.1 · 5.3 Medium EPSS < 1% KEV · Not listed
Vendors
Getgrist
Products
Grist-core
CVE-2024-56357

Cross-site Scripting vulnerability through custom widget URLs and form redirect URLs in grist-core

grist-core is a spreadsheet hosting server. A user visiting a malicious document or submitting a malicious form could have their account compromised, because it was possible to use the `javascript:` scheme with custom widget URLs and form redirect URLs. This issue has been patched in version 1.3.1. Users are advised to upgrade. Users unable to upgrade should avoid visiting documents or forms prepared by people they do not trust.

CVSS 3.1 · 8.1 High EPSS < 1% KEV · Not listed
Vendors
Getgrist
Products
Grist-core
CVE-2024-56358

Cross-site Scripting vulnerability through svg attachment previews in grist-core

grist-core is a spreadsheet hosting server. A user visiting a malicious document and previewing an attachment could have their account compromised, because JavaScript in an SVG file would be evaluated in the context of their current page. This issue has been patched in version 1.3.2. Users are advised to upgrade. Users unable to upgrade should avoid previewing attachments in documents prepared by people they do not trust.

CVSS 3.1 · 8.1 High EPSS < 1% KEV · Not listed
Vendors
Getgrist
Products
Grist-core
CVE-2024-56359

Cross-site Scripting vulnerability through HyperLink cells in grist-core

grist-core is a spreadsheet hosting server. A user visiting a malicious document and clicking on a link in a HyperLink cell using a control modifier (meaning for example Ctrl+click) could have their account compromised, since the link could use the javascript: scheme and be evaluated in the context of their current page. This issue has been patched in version 1.3.2. Users are advised to upgrade. Users unable to upgrade should avoid clicking on HyperLink cell links using a control modifier in documents prepared by people they do not trust.

CVSS 3.1 · 8.1 High EPSS < 1% KEV · Not listed
Vendors
Getgrist
Products
Grist-core