CVE-2026-56694

NanoClaw before 2.1.0 contains a privilege escalation vulnerability in the channel-registration approval flow where handleChannelApprovalResponse fails to validate admin privileges over target agent groups. Scoped admins can submit forged or stale connect callback values to wire messaging channels into out-of-scope agent groups, exposing unauthorized groups to unapproved channels and enabling unauthorized observation or control of restricted agent group activity.

CVSS v3 5.4 MEDIUM

5.4^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.8 / Impact : 2.5

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact LOW

Integrity Impact LOW

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://github.com/nanocoai/nanoclaw/commit/0eef8fafdd7c475ab5fd8d37ea566a81e74cd834
https://github.com/nanocoai/nanoclaw/pull/2566
https://www.vulncheck.com/advisories/nanoclaw-privilege-escalation-via-forged-channel-approval-callback

Configurations

No configuration.

History

No history.

Information

Published : 2026-06-23 16:17

Updated : 2026-09-17 18:16

NVD link : CVE-2026-56694

Mitre link : CVE-2026-56694

CVE.ORG link : CVE-2026-56694

JSON object : View

Products Affected

No product.

CWE

CWE-863

Incorrect Authorization

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