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CVE-2026-19244

HKUDS nanobot MCP enabledTools Scope mcp.py connect_mcp_servers access control

Published: Aug 7, 2026Updated: Aug 12, 2026 Sources: CVE List NVDCWE-266
4.7MEDIUM
NVD MITRE
EPSS Score
0.3%
Top 80.3%
CISA KEV
Not in KEV
Exploits
No Known Exploits
Remediation
No Fix Available
Self-Check
Not available

Description

A vulnerability was detected in HKUDS nanobot up to 0.2.1. The affected element is the function connect_mcp_servers of the file nanobot/agent/tools/mcp.py of the component MCP enabledTools Scope Handler. Performing a manipulation results in improper access controls. The attack is possible to be carried out remotely. The exploit is now public and may be used. Upgrading to version 0.3.0 is sufficient to fix this issue. The patch is named 4436. You should upgrade the affected component. Multiple issues were reported to the project. They reacted with a high level of professionalism and kindness: "Both reports describe the same root cause: MCP resource and prompt wrappers could be registered outside the intended enabledTools scope. The registration boundary was corrected".

No summary for this CVE yet.

CVSS Vector Breakdown

AV:NAC:LPR:HUI:NS:UC:LI:LA:L
Exploitability
AV:NAttack Vector
Network
AC:LAttack Complexity
Low
PR:HPrivileges Required
High
UI:NUser Interaction
None
Scope
S:UScope
Unchanged
Impact
C:LConfidentiality
Low
I:LIntegrity
Low
A:LAvailability
Low
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Weaknesses

CWE-266CWE-284

Affected Products

HKUDS
aka lightrag, nanobot, openharness
nanobotMixed
ICS / OT / IoT / smart-home

Exploitability

No known exploits, KEV entries, or remediation guidance available for this vulnerability yet.

References

https://gist.github.com/YLChen-007/3de5f50d167a878f7530f57ed018d508
gist.github.com
https://github.com/HKUDS/nanobot/
github.com
https://github.com/HKUDS/nanobot/issues/4435
github.com
and 7 more references View all →

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