5.8

CVE-2026-19244

Exploit

HKUDS nanobot MCP enabledTools Scope mcp.py connect_mcp_servers access control

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".
Daten sind bereitgestellt durch das CVE Programm von einer CVE Numbering Authority (CNA) (Unstrukturiert).
HerstellerHKUDS
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Produkt nanobot
Version 0.2.0
Status affected
Version 0.2.1
Status affected
Version 0.3.0
Status unaffected
VulnDex Vulnerability Enrichment
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Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.27% 0.193
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
cna@vuldb.com 4.7 1.2 3.4
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:L
cna@vuldb.com 2 0 0
CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
cna@vuldb.com 5.8 6.4 6.4
AV:N/AC:L/Au:M/C:P/I:P/A:P
CWE-266 Incorrect Privilege Assignment

A product incorrectly assigns a privilege to a particular actor, creating an unintended sphere of control for that actor.

CWE-284 Improper Access Control

The product does not restrict or incorrectly restricts access to a resource from an unauthorized actor.

https://github.com/HKUDS/nanobot/releases/tag/v0.3.0
https://github.com/HKUDS/nanobot/
https://vuldb.com/vuln/386998
https://vuldb.com/vuln/386998/cti
https://vuldb.com/cve/CVE-2026-19244
https://vuldb.com/submit/865116
https://vuldb.com/submit/865118
https://github.com/HKUDS/nanobot/issues/4435
https://gist.github.com/YLChen-007/3de5f50d167a878f7530f57ed018d508
https://github.com/HKUDS/nanobot/pull/4436