CVE-2026-100538

Medium

Description

OpenClaw (npm package 'openclaw') before 2026.8.1 does not apply the originating sender's global or per-agent toolsBySender policy when handling outbound attachments. A sender that has been explicitly denied filesystem read tools can still cause a known local file to be read and returned via a final-response media directive or a message attachment, disclosing local file contents to an admitted requester whose agent turn did not include the read tool. Exploitation requires knowledge or derivation of a useful host path and a delivery flow that accepts local attachments. The issue is fixed in version 2026.8.1.

SeverityMedium
CVSS6.5
Exploit probability—
ProductOpenClaw
PublishedSep 26, 2026
First seenSep 26, 2026

How to fix

Update
  • OpenClaw OpenClaw2026.8.1 or later

Affected products

ProductAffected versionsFixed in
OpenClaw OpenClawv < 2026.8.12026.8.1

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