pyodide sandbox option is insecure_CVE-2026-24002

9.1 / 10

CRITICAL

CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H

Description

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`.

Basic Information

ID CVE-2026-24002

Source GitHub_M

Published Jan 22, 2026 at 02:26

Modified Jan 22, 2026 at 12:54

Affected Product

Vendor gristlabs

Product grist-core

Version < 1.7.9

Affected Versions gristlabs grist-core < 1.7.9

CWE Classification

CWE-74

References

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    "published": "2026-01-22T02:26:28.765Z",
    "modified": "2026-01-22T12:54:32.232Z",
    "type": "cve",
    "title": "pyodide sandbox option is insecure",
    "source": "GitHub_M",
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