CVE-2026-100538

MEDIUM 6.5

OpenClaw before 2026.8.1 Local File Read via Outbound Attachments

CVSS Score

6.5

EPSS Score

0.0%

EPSS Percentile

0th

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.

CWE	CWE-863
Vendor	openclaw
Product	openclaw
Published	Sep 26, 2026

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CVSS v3 Breakdown

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

Attack Vector

Network

Attack Complexity

Low

Privileges Required

Low

User Interaction

None

Scope

Unchanged

Confidentiality

High

Integrity

None

Availability

None

Affected Versions

OpenClaw / OpenClaw

0 < 2026.8.1

References

NVD ↗ CVE.org ↗ EPSS Data ↗

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