SecuriTricks - CVE-2026-53818

Description

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.

Product(s) Impacted

Vendor	Product	Versions
Openclaw	Openclaw	<2026.4.24

Weaknesses

Common security weaknesses mapped to this vulnerability.

CWE-862

Missing Authorization

The product does not perform an authorization check when an actor attempts to access a resource or perform an action.

*CPE(s)

Affected systems and software identified for this CVE.

Type	Vendor	Product	Version	Update	Edition	Language	Software Edition	Target Software	Target Hardware	Other Information
a	openclaw	openclaw	<2026.4.24	/	/	/	/	/	/	/

References

https://github.com/openclaw/openclaw/security/advisories/GHSA-rj6p-xmxr-qj4h

https://www.vulncheck.com/advisories/openclaw-owner-only-tool-policy-bypass-via-mcp-loopback

CVSS Score

6.9 / 10

CVSS Data - 4.0

Attack Vector: LOCAL
Attack Complexity: LOW
Attack Requirements: NONE
Privileges Required: LOW
User Interaction: NONE
Scope:
Confidentiality Impact: LOW
Integrity Impact: HIGH
Availability Impact: LOW
Exploit Maturity: NOT_DEFINED

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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X

View Vector String

Timeline

Published: June 11, 2026, 9:16 p.m.
Last Modified: June 11, 2026, 9:16 p.m.

Status : Received

CVE has been recently published to the CVE List and has been received by the NVD.

More info

Source

[email protected]

CVE-2026-53818