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HIGHCVE-2026-41299Published Modified CNA VulnCheck

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

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

CVSS v4.0
7.1
Severity
HIGH
Fixed in
2026.3.28
Affected Products
1

Fix available

2026.3.28
Affected packages
  • OpenClaw / OpenClaw
    < 2026.3.28 (from 0)
    Fixed in 2026.3.28
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
References