Is this vulnerability remotely exploitable?

Yes, if an attacker can get a vulnerable Grist instance (configured with `GRIST_SANDBOX_FLAVOR=pyodide`) to open a malicious spreadsheet, they can potentially execute arbitrary code on the server without needing direct system-level access.

What level of access does an attacker need?

The attacker generally needs the ability to supply or control a document that Grist will open under the pyodide sandbox flavor, which may correspond to normal user-level access depending on how the workspace and sharing model are configured.

What is the safest general fix pattern?

Route all untrusted formula execution through a strongly isolated environment, such as a gVisor-like or similarly hardened sandbox, and ensure that this configuration is enforced by default so administrators cannot inadvertently weaken isolation.

Severity:

CRITICAL RISK

(9.0)

Server-Side Code Injection via Unsandboxed Pyodide Execution (CWE-74) in Grist

CVE-2026-24002

Published:

Jan 21, 2026

Status:

Analyzed

Summary

Affected Context

Exploit Preconditions

Why This Happens

Potential Impact

General Mitigation Guidance

How Teams Detect Issues Like This

Frequently Asked Questions

Source

NDV

Recent Vulnerabilities

CWE-77;CWE-78

HIGH RISK

HIGH

(7.3)

OS Command Injection (CWE-78) in Totolink A7100RU setGameSpeedCfg CGI Handler

Remote Code Execution on the Router

April 6, 2026

CWE-77;CWE-78

HIGH RISK

HIGH

(7.3)

OS Command Injection (CWE-78) in Totolink A7100RU setFirewallType Handler

Remote Code Execution on Router Firmware

April 6, 2026

Vulnerability Type

Category:

Server-Side Code Injection

CWE:

CWE-74

Impact:

Remote Code Execution on Grist Server

Severity:

CRITICAL RISK

(9.0)

CVSS Version:

3.1

Vulnerability Type

Category:

Server-Side Code Injection

CWE:

CWE-74

Impact:

Remote Code Execution on Grist Server

Severity:

CRITICAL RISK

(9.0)

CVSS Version:

3.1

Catch This CVE While Code Is Being Written

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Server-Side Code Injection via Unsandboxed Pyodide Execution (CWE-74) in Grist

Summary

Affected Context

Exploit Preconditions

Why This Happens

Potential Impact

General Mitigation Guidance

How Teams Detect Issues Like This

Frequently Asked Questions

Source

Recent Vulnerabilities

HIGH RISK

HIGH

(7.3)

OS Command Injection (CWE-78) in Totolink A7100RU setGameSpeedCfg CGI Handler

HIGH RISK

HIGH

(7.3)

OS Command Injection (CWE-78) in Totolink A7100RU setFirewallType Handler

Vulnerability Type

Vulnerability Type

Vulnerability Type

Catch This CVE While Code Is Being Written

Ship clean & secure code faster

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