CVE-2026-24002: gristlabs grist-core · Injection
Affects gristlabs grist-coreSource CVE Database V5
Not known to be exploited · CVSS 9.1 Critical : upgrade to 1.7.9 as a priority.
Data as of 26 Oct 2026, 10:12 UTC
- EPSS
- 0.5% chance of exploitation in 30 days – higher than 43% of CVEsExploit Prediction Scoring System: the likelihood attackers will use this flaw soon.
- Patch
- Available – fixed in 1.7.9
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:H/I:H/A:HExploitation evidence
Disclosed: evidence found.
CVE published 22 Jan 2026
Detectable: no evidence on record.
No public nuclei template indexed
Weaponised: no evidence on record.
No public exploit code indexed in Metasploit or Exploit-DB
Exploited in the wildExploited: no evidence on record.
Not in CISA KEV and no source reports exploitation
Observed by OffSeq MirageSeen by Mirage: no evidence on record.
No attack traffic recorded by OffSeq Mirage sensors
A missing step is not evidence of safety. Sources: cve.org (opens in a new tab), the Metasploit, Exploit-DB and nuclei-templates index as of 26 Oct 2026.
What to do
Upgrade grist-core and gristlabs/grist-core to 1.7.9.
Affected software
| Product | Affected | Fixed in |
|---|---|---|
| gristlabsgrist-core | Affected
| Fixed in
|
GitHubgristlabs/grist-corepkg:github/gristlabs/grist-coreOther threats | Affected
| Fixed in
|
Check your own hosts for these packages with threat-finder (opens in a new tab), our free open-source scanner.
AI-suggested
European organizations should immediately upgrade grist-core installations to version 1.7.9 or later, which implements the secure pyodide sandbox under Deno. Until upgrading is possible, reconfigure the environment variable GRIST_SANDBOX_FLAVOR to 'gvisor' to leverage container-based sandboxing that isolates formula execution more effectively. Conduct thorough audits of existing grist-core deployments to identify any instances running vulnerable versions with the pyodide sandbox on Node.js. Implement network segmentation and strict access controls around grist-core servers to limit exposure. Monitor logs for unusual process executions or anomalies indicative of exploitation attempts. Employ application-layer firewalls or runtime application self-protection (RASP) solutions to detect and block suspicious activity. Educate users about the risks of opening untrusted spreadsheet documents. Finally, maintain up-to-date backups and incident response plans to quickly recover from potential compromises.
Description
CVE-2026-24002 is a critical vulnerability in grist-core spreadsheet software versions prior to 1.7.9. It arises from improper sandboxing of Python formulas executed via pyodide on Node.js, allowing malicious spreadsheet documents to execute arbitrary processes on the server. The vulnerability is due to CWE-74, improper neutralization of special elements in output used by downstream components, leading to injection attacks. Exploitation requires no authentication or user interaction beyond opening a malicious document with the vulnerable sandbox setting. The issue is mitigated in grist-core 1.7.9 and later by running pyodide under the Deno runtime, which provides stronger sandboxing.