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.
History

Tue, 21 Apr 2026 14:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Mon, 20 Apr 2026 23:30:00 +0000

Type Values Removed Values Added
Description 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.
Title OpenClaw < 2026.3.28 - Client Identity Spoofing in chat.send Gateway Provenance Guard
First Time appeared Openclaw
Openclaw openclaw
Weaknesses CWE-807
CPEs cpe:2.3:a:openclaw:openclaw:*:*:*:*:*:node.js:*:*
Vendors & Products Openclaw
Openclaw openclaw
References
Metrics cvssV3_1

{'score': 7.1, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:N'}

cvssV4_0

{'score': 7.1, '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'}


cve-icon MITRE

Status: PUBLISHED

Assigner: VulnCheck

Published: 2026-04-20T23:08:12.586Z

Updated: 2026-04-21T13:38:25.512Z

Reserved: 2026-04-20T14:01:13.151Z

Link: CVE-2026-41299

cve-icon Vulnrichment

Updated: 2026-04-21T13:38:20.202Z

cve-icon NVD

Status : Awaiting Analysis

Published: 2026-04-21T00:16:30.517

Modified: 2026-04-21T16:20:24.180

Link: CVE-2026-41299

cve-icon Redhat

No data.