# CVE-2026-56694: nanocoai NanoClaw privilege escalation in channel-registration approval flow

Source: https://junglewise.ai/threats/cve-2026-56694-nanocoai-nanoclaw-privilege-escalation-in-channel-registration  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Published: 2026-06-23. Updated: 2026-06-23  
License: CC BY 4.0 with a link back

CVE-2026-56694 · Severity: medium · CVSS 5.4 · Published 2026-06-23

NanoClaw, an agent management and messaging platform, contains a security flaw in how it handles administrative approvals for new communication channels. A user with limited administrative rights over one group can bypass restrictions to link messaging channels to other groups they are not authorized to manage. This could allow an unauthorized person to monitor or influence activities and communications within restricted parts of the organization.

## Quick answers

**Is CVE-2026-56694 exploited in the wild?** No. Junglewise Threat Intelligence has no report of CVE-2026-56694 being exploited in the wild.

**How severe is CVE-2026-56694?** Medium severity, with a CVSS score of 5.4, published 23 June 2026.

**Which products and versions are affected?** nanocoai NanoClaw < 2.1.0.

**Is there a fix for CVE-2026-56694?** A patch was published on 2026-05-22: Fix committed to main branch Junglewise finds every place you run it, drafts the upgrade and applies it once you approve.

**How is CVE-2026-56694 attacked?** It is attacked over the network, in a software library.

**Am I affected by CVE-2026-56694?** Check whether anything you run is named in the advisory. Junglewise does that check for you around the clock: connect your code, cloud and domains, and it matches new vulnerabilities like this one against what you actually run and tells you when one reaches you.

## Technical details

A privilege escalation vulnerability exists in NanoClaw's channel-registration approval flow due to improper authorization checks in the 'handleChannelApprovalResponse' function. The root cause is a failure to validate that a scoped administrator has administrative privileges over a target agent group when approving a channel connection. An attacker with 'scoped admin' privileges can submit forged or stale callback values to wire messaging channels into agent groups outside their authorized scope. This allows the attacker to observe or control activity in restricted agent groups. The issue is fixed in version 2.1.0 by enforcing target-group authorization at the time the approval is applied and filtering selectable options based on the approver's identity.

## Affected products

- nanocoai NanoClaw < 2.1.0

## Timeline

- 2026-05-20: other: Pull request submitted
- 2026-05-22: patched: Fix committed to main branch
- 2026-06-23: disclosed: CVE published

## References

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