gristlabs grist-core up to 1.7.8 GRIST_SANDBOX_FLAVOR injection

Summaryinfo

A vulnerability categorized as problematic has been discovered in gristlabs grist-core up to 1.7.8. Affected by this issue is some unknown functionality. Such manipulation of the argument GRIST_SANDBOX_FLAVOR leads to injection. This vulnerability is documented as CVE-2026-24002. The attack can be executed remotely. There is not any exploit available. It is advisable to upgrade the affected component.

Detailsinfo

A vulnerability was found in gristlabs grist-core up to 1.7.8 and classified as problematic. Affected by this issue is an unknown functionality. The manipulation of the argument GRIST_SANDBOX_FLAVOR with an unknown input leads to a injection vulnerability. Using CWE to declare the problem leads to CWE-74. The product constructs all or part of a command, data structure, or record using externally-influenced input from an upstream component, but it does not neutralize or incorrectly neutralizes special elements that could modify how it is parsed or interpreted when it is sent to a downstream component. Impacted is confidentiality, integrity, and availability. CVE summarizes:

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`.

The advisory is available at github.com. This vulnerability is handled as CVE-2026-24002 since 01/19/2026. The exploitation is known to be difficult. The attack may be launched remotely. No form of authentication is required for exploitation. Technical details are known, but there is no available exploit. This vulnerability is assigned to T1055 by the MITRE ATT&CK project.

Upgrading to version 1.7.9 eliminates this vulnerability.

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Productinfo

Vendor

• gristlabs

Name

• grist-core

Version

• 1.7.0
• 1.7.1
• 1.7.2
• 1.7.3
• 1.7.4
• 1.7.5
• 1.7.6
• 1.7.7
• 1.7.8

Website

• Product: https://github.com/gristlabs/grist-core/

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