| Component | OpenClaw |
| Severity | high (CVSS 7.7) |
| CVSS vector | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N |
| Published (NVD) | 2026-05-05 |
| Last modified | 2026-06-17 |
| Affected versions | openclaw = 2026.4.9 |
| Fixed in | see the vendor advisory |
| Weakness | CWE-863 |
| CISA KEV | not listed |
NVD description
OpenClaw versions 2026.4.9 before 2026.4.10 contain a sender policy bypass vulnerability in the outbound host-media attachment read helper that allows unauthorized local file disclosure. Attackers with denied read access via toolsBySender or group policy can trigger host-media attachment loading to bypass sender and group-scoped authorization boundaries and retrieve readable local files through the outbound media path.
What to do
- NVD lists no fixed version yet: follow the vendor advisory below and keep OpenClaw off the public internet until a fix ships.
- Do not expose the component's API or UI to the internet without authentication in front of it.
Sources
- NVD: CVE-2026-42438
- https://github.com/openclaw/openclaw/security/advisories/GHSA-jhpv-5j76-m56h
- https://github.com/openclaw/openclaw/commit/c949af9fabf3873b5b7c484090cb5f5ab6049a98
- https://www.vulncheck.com/advisories/openclaw-sender-policy-bypass-in-host-media-attachment-reads
Read more
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