CVE-2026-100564 OpenClaw before 2026.8.1 CSV Formula Injection via Attendance Export
Attackers can inject malicious formulas into attendance CSV exports, leading to code execution when opened in spreadsheet applications.
- Exploited in the wild
- Not known
- Login needed
- Not needed
- Attackable
- Over the internet
- Victim action needed
- A user has to click or open something
- Fix
- Available
What is CVE-2026-100564?
CVE-2026-100564 is a medium-severity vulnerability in OpenClaw, published on 26 Sep 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Official description
OpenClaw versions before 2026.8.1 fail to neutralize spreadsheet formula characters in participant display names within attendance CSV exports. Attackers can inject formula-like cells that execute with spreadsheet user permissions when the export is opened in formula-enabled applications.
Weakness: CWE-1236
Which versions are affected by CVE-2026-100564?
How do I fix CVE-2026-100564?
Upgrade to a fixed version.
Is CVE-2026-100564 being exploited?
There is no known exploitation of CVE-2026-100564 in the wild and no public exploit code.
Sources
Also known as GHSA-39hf-qg99-f4qv, GHSA-8m9f-8fvq-mwvm, MINI-q839-25gg-rgpw.