HOMEVULNERABILITIESCVE-2026-35634
MEDIUMPOC

CVE-2026-35634

CWE-288Published: April 9, 2026· Updated: Apr 16, 2026

5.1
CVSS v3.1
EPSS:0.02%probability of exploitation in 30 daysPercentile:6.7th

Official 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.

NVD Source

Technical Analysis

CVE-2026-35634 requires local access, meaning attackers must already have a foothold on the target system.

The vulnerability requires no privileges and no user interaction, making it a prime target for automated exploitation campaigns and worm-like propagation.

A proof-of-concept (PoC) exploit exists for CVE-2026-35634. While not yet confirmed in active campaigns, the availability of PoC code increases exploitation risk substantially.

CVSS v3.1 Vector Breakdown

Exploitability
Attack VectorLocal
Attack ComplexityLow
Privileges Req.None
User InteractionNone
ScopeUnchanged
Impact
ConfidentialityLow
IntegrityLow
AvailabilityNone
CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:N

Affected Vendors & Products

openclaw1 product
openclaw
Source: NVD CPE · 1 total CPE entries

Exploit & PoC Resources

POC AVAILABLEProof-of-concept code exists
Exploit-DB
Offensive Security exploit database
GitHub PoC Search
Community PoC repositories
Rapid7 / Metasploit
Metasploit module search
PacketStorm
Security advisories & exploits
NVD Detail
Official NIST entry
MITRE CVE
CVE Program entry
External links open in a new tab. Always verify in a controlled environment before use.

Official Patches & Advisories

PATCHhttps://github.com/openclaw/openclaw/commit/630f1479c44f78484dfa21bb407cbe6f171dac87
PATCHhttps://github.com/openclaw/openclaw/commit/d5dc6b6573ae489bc7e5651090f4767b93537c9e
ADVISORYhttps://github.com/openclaw/openclaw/security/advisories/GHSA-6mqc-jqh6-x8fc
ADVISORYhttps://www.vulncheck.com/advisories/openclaw-authentication-bypass-via-local-direct-requests-in-canvas-gateway

All References (4)

→
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

Quick Facts

CVE IDCVE-2026-35634
CVSS Score5.1 / 10
SeverityMEDIUM
WeaknessCWE-288
CISA KEVNo
ExploitPOC
EPSS (30d)0.02%
Affected1 vendor
PublishedApr 9, 2026

Related CVEs (CWE-288)

CVE-2026-53622
10.0
CVE-2026-48020
10.0
CVE-2026-20079
10.0
CVE-2026-48491
10.0
CVE-2026-10523
9.9
CVE-2026-28411
9.8

Recommended Actions

  • →Apply vendor patches immediately
  • →Monitor CVE-2026-35634 in threat intel feeds
  • →Review IDS/IPS signatures for exploitation attempts
Data sourced from NVD (NIST), CISA KEV, and EPSS (FIRST). Analysis generated by CTIWATCH.COM. CVE data is provided under the NVD usage policy.
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