---
id: CVE-2026-100564
title: >-
  OpenClaw versions before 2026.8.1 fail to neutralize spreadsheet formula
  characters in participant display names within attendance CSV exports
summary: >-
  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 t…
severity: medium
cvss: 5.4
cvssVector: 'CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:L/A:N'
cwe:
  - CWE-1236
vendor: OpenClaw
product: OpenClaw
affected:
  - OpenClaw < 2026.8.1
published: '2026-09-26'
updated: '2026-09-26'
sourceUpdated: '2026-09-26T03:17:03.447'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-100564'
references:
  - url: >-
      https://github.com/openclaw/openclaw/security/advisories/GHSA-39hf-qg99-f4qv
    label: disclosure@vulncheck.com
  - url: >-
      https://www.vulncheck.com/advisories/openclaw-before-2026.8.1-csv-formula-injection-via-attendance-export
    label: disclosure@vulncheck.com
tags:
  - nvd
  - cve.org
ingestedAt: '2026-09-26T03:25:24.686Z'
---

## Overview

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.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.