CVE-2026-100538

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.

CVSS v3 6.5 MEDIUM

6.5^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.8 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact NONE

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://github.com/openclaw/openclaw/security/advisories/GHSA-w5x7-c87m-3jpc
https://www.vulncheck.com/advisories/openclaw-before-2026.8.1-local-file-read-via-outbound-attachments

Configurations

No configuration.

History

26 Sep 2026, 03:16

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-09-26 03:16

Updated : 2026-09-28 18:17

NVD link : CVE-2026-100538

Mitre link : CVE-2026-100538

CVE.ORG link : CVE-2026-100538

JSON object : View

Products Affected

No product.

CWE

CWE-863

Incorrect Authorization

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