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.
Metrics
Affected Vendors & Products
References
History
Tue, 21 Apr 2026 14:15:00 +0000
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ssvc
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Mon, 20 Apr 2026 23:30:00 +0000
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| 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 |
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| Weaknesses | CWE-807 | |
| CPEs | cpe:2.3:a:openclaw:openclaw:*:*:*:*:*:node.js:*:* | |
| Vendors & Products |
Openclaw
Openclaw openclaw |
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| References |
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| Metrics |
cvssV3_1
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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
Updated: 2026-04-21T13:38:20.202Z
Status : Awaiting Analysis
Published: 2026-04-21T00:16:30.517
Modified: 2026-04-21T16:20:24.180
Link: CVE-2026-41299
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