Medium severity6.6NVD Advisory· Published Jun 12, 2026· Updated Jun 16, 2026

CVE-2026-53820

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.

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

OpenClaw/Openclaw2 versions
cpe:2.3:a:openclaw:openclaw:*:*:*:*:*:node.js:*:*+ 1 more
- cpe:2.3:a:openclaw:openclaw:*:*:*:*:*:node.js:*:*range: <2026.5.12
- (no CPE)range: <2026.5.12

Patches

Vulnerability mechanics

References

github.com/openclaw/openclaw/security/advisories/GHSA-qh2f-99mv-mrcfnvdMitigationVendor Advisory
www.vulncheck.com/advisories/openclaw-exec-denylist-bypass-in-bundle-mcp-loopback-session-spawnnvdThird Party Advisory

News mentions

OpenClaw: 25 CVEs Disclosed in Largest Security Batch, Including Code Execution and Critical Auth Bypass
Vypr Intelligence · Jun 12, 2026

cvss	0.429
epss	0.000
exploit	0.000
kev	0.000
patch	-0.070
ransomware	0.000