PT-2026-49024 · Openclaw · Openclaw

Cantinagen + 1 · Published 2026-06-12 · Updated 2026-06-12 · CVE-2026-53820

Mitre

CVSS v3.1

6.6

Medium

Base vector

AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:L

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.

Fix

Missing Authorization

Weakness Enumeration

CWE-862

Related Identifiers

CVE-2026-53820

Affected Products

Openclaw

References · 3

• https://github.com/openclaw/openclaw/security/advisories/GHSA-qh2f-99mv-mrcf · Vendor Advisory
• https://nvd.nist.gov/vuln/detail/CVE-2026-53820 · Security Note
• https://vulncheck.com/advisories/openclaw-exec-denylist-bypass-in-bundle-mcp-loopback-session-spawn · Note