CVE-2026-53820

MEDIUM EPSS 0.8%
Published Jun 12, 20262w ago · Modified Jun 17, 20261w ago
6.9 CVSS 4.0
Medium
Find Similar
Published Jun 12, 2026 2w ago
Last Modified Jun 17, 2026 1w ago

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.

CVSS Details

Base Score
6.9
Exploitability
—
Impact
—
Vector string
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
Attack Vector Local
Attack Complexity Low
Privileges Required Low
User Interaction None
Scope X

Threat Intelligence

EPSS Exploit Probability
0.8% percentile
Exploit & Patch Status
No Known Exploit
No Patch Available

Weaknesses 1

CWE-862 Missing Authorization Authorization

Affected Products 1

VendorProductVersionRange
openclawopenclaw* <2026.5.12

References 2

  • github.com https://github.com/openclaw/openclaw/security/advisories/GHSA-qh2f-99mv-mrcf
    MitigationVendor Advisory
  • vulncheck.com https://www.vulncheck.com/advisories/openclaw-exec-denylist-bypass-in-bundle-mcp-loopback-session-spawn
    Third Party Advisory

Remediation

No remediation data recorded yet

Check vendor advisories and the NVD entry for patch availability.