What is CVE-2026-24002?

CVE-2026-24002 is a critical-severity vulnerability in Getgrist Grist-Core, classified under Improper Neutralization of Special Elements in Output Used by a Downstream Component (Injection). CVSS score: 9.0/10. Published 2026-01-22.

How severe is CVE-2026-24002?

Critical severity. CVSS v3 base score is 9.0 out of 10.

Vulnerability in Getgrist Grist-Core

CVE-2026-24002

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`.

EPSS: 0.005 (40.0th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 9.0 (Critical). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:H.

Affected products

Getgrist Grist-core
Gristlabs Grist-core — versions < 1.7.9

Weakness classification (CWE)

CWE-74 — Improper Neutralization of Special Elements in Output Used by a Downstream Component (Injection)

References

security-advisories@github.com (x_refsource_CONFIRM, Vendor Advisory)
security-advisories@github.com (Patch, x_refsource_MISC)

Frequently asked questions

What is CVE-2026-24002?: CVE-2026-24002 is a critical-severity vulnerability in Getgrist Grist-Core, classified under Improper Neutralization of Special Elements in Output Used by a Downstream Component (Injection). CVSS score: 9.0/10. Published 2026-01-22.
How severe is CVE-2026-24002?: Critical severity. CVSS v3 base score is 9.0 out of 10.