CVE-2026-41299 HIGH

CVE-2026-41299: OpenClaw < 2026.3.28 - Client Identity Spoofing in chat.send Gateway Provenance Guard

Vendor Openclaw
Product OpenClaw
Weakness CWE-807
Published April 20, 2026
Last update April 21, 2026
View on NVD All CVEs

CVSS base score

7.1/10
Attack vector Network
Attack complexity Low
Privileges required Low
User interaction None
Confidentiality —
Integrity —

CVSS vector

CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:H/VA:N/SC:N/SI:N/SA:N

What the vulnerability does

01Description

OpenClaw before 2026.3.28 contains an authorization bypass vulnerability in the chat.send gateway method where ACP-only provenance fields are gated by self-declared client metadata from WebSocket handshake rather than verified authorization state. Authenticated operator clients can spoof ACP identity labels and inject reserved provenance fields intended only for the ACP bridge by manipulating client metadata during connection.

Key dates

02Disclosure timeline

April 20, 2026 CVE published
April 21, 2026 Record updated