CVE-2026-35634

MEDIUM

OpenClaw < 2026.3.23 - Authentication Bypass via Local-Direct Requests in Canvas Gateway

Title source: cna

Description

OpenClaw before 2026.3.23 contains an authentication bypass vulnerability in the Canvas gateway where authorizeCanvasRequest() unconditionally allows local-direct requests without validating bearer tokens or canvas capabilities. Attackers can send unauthenticated loopback HTTP and WebSocket requests to Canvas routes to bypass authentication and gain unauthorized access.

References (4)

[Third Party Advisory] https://github.com/openclaw/openclaw/security/advisories/GHSA-6mqc-jqh6-x8fc

[Patch] https://github.com/openclaw/openclaw/commit/630f1479c44f78484dfa21bb407cbe6f171dac87

[Patch] https://github.com/openclaw/openclaw/commit/d5dc6b6573ae489bc7e5651090f4767b93537c9e

View Patch ZIP pw:eip

[Third Party Advisory] https://www.vulncheck.com/advisories/openclaw-authentication-bypass-via-local-direct-requests-in-canvas-gateway

Scores

CVSS v3 5.1

EPSS 0.0003

EPSS Percentile 8.7%

Attack Vector LOCAL

CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N

Details

CWE

CWE-288

Status published

Products (4)

npm/openclaw 0 - 2026.3.23npm

OpenClaw/OpenClaw < 2026.3.23

openclaw/openclaw < 2026.3.23

OpenClaw/OpenClaw 2026.3.23

Published Apr 09, 2026

Tracked Since Apr 10, 2026