CVE-2026-56694 NanoClaw < 2.1.0 - Privilege Escalation via Forged Channel Approval Callback
Scoped admins can escalate privileges by forging channel approval callbacks to access unauthorized agent groups in NanoClaw.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-56694?
CVE-2026-56694 is a medium-severity vulnerability in nanocoai nanoclaw, published on 23 Jun 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
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.
Weakness: CWE-863
Which versions are affected by CVE-2026-56694?
How do I fix CVE-2026-56694?
No fix has been published for CVE-2026-56694 yet. Limit exposure of the affected software until one is available.
Is CVE-2026-56694 being exploited?
There is no known exploitation of CVE-2026-56694 in the wild and no public exploit code.
Sources
Also known as GHSA-p56g-x65g-wr86.