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CVE-2026-53820

CVE-2026-53820 · OpenClaw < 2026.5.12 - Exec Denylist Bypass in Bundle MCP Loopback Session Spawn

This page contains facts from public vulnerability sources. Check the original advisory before updating.

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 6.9 · Medium · EPSS 0.1% · Fix available

Published
Updated

Stack: node

Affected products and versions

  • openclaw

    Versions
    • ≥ 0, < 2026.5.12: Affected (semver)
    • 2026.5.12: Not affected (semver)

    Update to 2026.5.12

  • openclaw npm

    Affected ranges
    • SEMVER: < 2026.5.12

    Update to 2026.5.12

Original sources

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