Home/CVE/OpenClaw before 2026.3.23 contains an authentication bypass vulnerability in the Canvas gateway where authorizeCanvasReq
CVE

CVE-2026-35634

OpenClaw before 2026.3.23 contains an authentication bypass vulnerability in the Canvas gateway where authorizeCanvasReq

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.

MEDIUM · CVSS 5.1 EPSS 0.00033
Monitor
  • No active-exploitation, high-EPSS, or public-exploit signals - routine patching cadence
Sigma rules0 YARA rules0
⬡

Weakness Classification

CWE-288Authentication Bypass Using an Alternate Path or Channel
▤

Affected Products & Versions

1
openclaw< 2026.3.23
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Affected Packages

1
Language-ecosystem packages (from OSV) tied to this CVE, with the version that fixes it - the dependency-level detail NVD doesn’t carry.
npm openclaw MODERATE fixed in 2026.3.23
▣

Scoring & Timeline

5.1
MEDIUM · CVSS v3.1 · disclosure@vulncheck.com
View on NVD
Attack Vector
Network Adjacent Local Physical
Attack Complexity
Low High
Privileges Required
None Low High
User Interaction
None Required
Scope
Unchanged Changed
Confidentiality
None Low High
Integrity
None Low High
Availability
None Low High
Published to NVD09 Apr 2026 · 10:16 PM
CVSS VectorCVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N
SSVC triage · cisa-vulnrichment
Exploitation
none
Automatable
no
Technical impact
partial
SSVC asks the questions that actually drive patch urgency: is it being exploited, can attacks be automated, and how total is the impact.
🔗

References & Sources

4
Source URLs (vendor pages, mailing lists, write-ups). Exploit/PoC links are in their own section above to avoid duplication.
https://github.com/openclaw/openclaw/commit/630f1479c44f78484dfa21bb407cbe6f171dac87Patch
https://github.com/openclaw/openclaw/commit/d5dc6b6573ae489bc7e5651090f4767b93537c9ePatch
https://github.com/openclaw/openclaw/security/advisories/GHSA-6mqc-jqh6-x8fcVendor Advisory
https://www.vulncheck.com/advisories/openclaw-authentication-bypass-via-local-direct-requests-in-canvas-gatewayThird Party Advisory
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