CVE-2026-53820
Low
No strong exploitation signal.
CVSS base
6.6
MEDIUM
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:L
EPSS — probability of exploitation (30 days)
0.1%
0.7th percentile
CISA KEV
Not listed
Weakness / dates
CWE-862
Published 2026-06-12 · modified 2026-07-23
CVSS breakdown
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:L/I:H/A:L
| Attack Vector | L | Local |
| Attack Complexity | L | Low |
| Privileges Required | L | Low |
| User Interaction | N | None |
| Scope | U | Unchanged |
| Confidentiality | L | Low |
| Integrity | H | High |
| Availability | L | Low |
Timeline
- 2026-06-12 — Published (NVD)
- 2026-07-23 — Last modified (NVD)
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.