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Home/Vulnerability/CVE-2026-53820

CVE-2026-53820

OpenClaw < 2026.5.12 - Exec Denylist Bypass in Bundle MCP Loopback Session Spawn

Published: Jun 12, 2026Updated: Jun 12, 2026 Sources: CVE List NVD
NVD MITRE
6.6CVSS
MEDIUM

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.

EPSS Score
N/A
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
No Fix Available

CVSS Vector Breakdown

AV:LAC:LPR:LUI:NS:UC:LI:HA:L
Exploitability
AV:LAttack Vector
Local
AC:LAttack Complexity
Low
PR:LPrivileges Required
Low
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:LConfidentiality
Low
I:HIntegrity
High
A:LAvailability
Low

Weaknesses

CWE-862

Affected Products

OpenClaw
OpenClaw
Security Products / endpoint-av-edr
openclawoss-projectSecurity Productsaka crabbox, clawdbot

Attack Graph

Products CVE Techniques Tactics

Click technique nodes to view MITRE ATT&CK details. Scroll to zoom, drag to pan.

Exploitability

No known exploits, KEV entries, or remediation guidance available for this vulnerability yet.

MITRE ATT&CK

2 techniques
Initial Access
View detailed technique mapping

References

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

Timeline

Published
Jun 12, 2026
Last Updated
Jun 12, 2026

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