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CVE Vulnerability Details :
CVE-2026-53818
PUBLISHED
More InfoOfficial Page
Assigner-VulnCheck
Assigner Org ID-83251b91-4cc7-4094-a5c7-464a1b83ea10
View Known Exploited Vulnerability (KEV) details
Published At-11 Jun, 2026 | 20:09
Updated At-12 Jun, 2026 | 13:45
Rejected At-
▼CVE Numbering Authority (CNA)
OpenClaw < 2026.4.24 - Owner-Only Tool Policy Bypass via MCP Loopback

OpenClaw before 2026.4.24 contains an authorization bypass vulnerability in the MCP loopback feature that allows non-owner callers to skip owner-only tool policies and before-tool-call hooks. Attackers can invoke owner-only behavior through the affected loopback path to execute restricted tools when the feature is enabled and reachable.

Affected Products
Vendor
OpenClawOpenClaw
Product
OpenClaw
Repo
https://github.com/openclaw/openclaw
Default Status
unaffected
Versions
Affected
  • From 0 before 2026.4.24 (semver)
Unaffected
  • 2026.4.24 (semver)
Problem Types
TypeCWE IDDescription
CWECWE-862Missing Authorization
Type: CWE
CWE ID: CWE-862
Description: Missing Authorization
Metrics
VersionBase scoreBase severityVector
4.06.9MEDIUM
CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:H/VA:L/SC:N/SI:N/SA:N
3.16.6MEDIUM
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:L
Version: 4.0
Base score: 6.9
Base severity: MEDIUM
Vector:
CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:L/VI:H/VA:L/SC:N/SI:N/SA:N
Version: 3.1
Base score: 6.6
Base severity: MEDIUM
Vector:
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:L
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions
Configurations
Workarounds
Exploits
Credits
reporter
zsx (@zsxsoft)
coordinator
KeenSecurityLab
finder
qclawer
tool
qclawer
Timeline
EventDate
Replaced By
Rejected Reason
References
HyperlinkResource
https://github.com/openclaw/openclaw/security/advisories/GHSA-rj6p-xmxr-qj4h
vendor-advisory
patch
https://www.vulncheck.com/advisories/openclaw-owner-only-tool-policy-bypass-via-mcp-loopback
third-party-advisory
Hyperlink: https://github.com/openclaw/openclaw/security/advisories/GHSA-rj6p-xmxr-qj4h
Resource:
vendor-advisory
patch
Hyperlink: https://www.vulncheck.com/advisories/openclaw-owner-only-tool-policy-bypass-via-mcp-loopback
Resource:
third-party-advisory
▼Authorized Data Publishers (ADP)
CISA ADP Vulnrichment
Affected Products
Metrics
VersionBase scoreBase severityVector
Metrics Other Info
Impacts
CAPEC IDDescription
Solutions
Configurations
Workarounds
Exploits
Credits
Timeline
EventDate
Replaced By
Rejected Reason
References
HyperlinkResource
Details not found