CVE-2026-41299CWE-807

OpenClaw < 2026.3.28 - Client Identity Spoofing in chat.send Gateway Provenance Guard

High · published April 20, 2026

CVSS v4.0
7.1
EPSS
0%
Percentile
27.6
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v4.0
7.1 · HIGH
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
EPSS
0.00352 · 27.6th percentile
Weakness
CWE-807 · Reliance on Untrusted Inputs in a Security Decision
Published
2026-04-20T23:08Z
EPSS history
Timeline
  • 20 APR 23:08Z
    OpenClaw < 2026.3.28 - Client Identity Spoofing in chat.send Gateway Provenance Guard
    cvelistv5