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CVE-2026-53820

nvd nist
Published: Jun 12, 2026Modified: Jun 17, 2026

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6.9
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/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
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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:XShow less
Source: disclosure@vulncheck.com (Secondary)

Description

OpenClaw before 2026.5.12 contains an exec denylist bypass vulnerability in the bundle MCP loopback session-spawn path that allows authenticated callers to bypass intended command restrictions. Attackers can reach the affected bundled MCP session-spawn path to start sessions with broader command reach than intended.

Affected (1)

Products: Openclaw: Openclaw
Openclaw
1 product
Openclaw
Configuration A
1 vulnerable
Vulnerable SoftwareAffected Versions
Openclaw
Before 2026.5.12

Related CWEs

CWE-862
Missing Authorization
The product does not perform an authorization check when an actor attempts to access a resource or perform an action.

References (2)

Source: disclosure@vulncheck.com
MitigationVendor Advisory
Source: disclosure@vulncheck.com
Third Party Advisory

Timeline

No history available yet.