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`.
Metrics
Affected Vendors & Products
References
History
Fri, 23 Jan 2026 16:45:00 +0000
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| First Time appeared |
Gristlabs
Gristlabs grist-core |
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| Vendors & Products |
Gristlabs
Gristlabs grist-core |
Thu, 22 Jan 2026 13:15:00 +0000
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| Metrics |
ssvc
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Thu, 22 Jan 2026 02:45:00 +0000
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| 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`. | |
| Title | pyodide sandbox option is insecure | |
| Weaknesses | CWE-74 | |
| References |
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| Metrics |
cvssV3_1
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Status: PUBLISHED
Assigner: GitHub_M
Published:
Updated: 2026-01-22T12:54:32.232Z
Reserved: 2026-01-19T18:49:20.658Z
Link: CVE-2026-24002
Updated: 2026-01-22T12:54:25.326Z
Status : Received
Published: 2026-01-22T03:15:47.777
Modified: 2026-01-22T03:15:47.777
Link: CVE-2026-24002
No data.