Python
CVE-2026-24002
CRITICAL
Severity by source
AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H
Primary rating from GitHub Advisory · only source for this CVE.
CVSS VectorGitHub Advisory
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H
Lifecycle Timeline
3DescriptionGitHub Advisory
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.
AnalysisAI
Grist spreadsheet software has an injection vulnerability in Python formula execution that allows authenticated users to escape the formula sandbox and execute arbitrary code.
Technical ContextAI
Grist uses Python as its formula language and provides several sandbox methods. A CWE-74 injection vulnerability allows authenticated users to break out of the formula sandbox and execute arbitrary code on the server.
RemediationAI
Update Grist to the patched version. Use the most restrictive sandbox method available (gvisor preferred over pypy sandbox).
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External POC / Exploit Code
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