CVE-2026-19244

Exploitation

Public exploit code exists. CISA's assessment records a public proof of concept. That is not a report of exploitation in the wild.

SSVC decision

• ExploitationpocPublic proof-of-concept exploit code exists. Not a report of exploitation in the wild.
• AutomatablenoAt least one step from reconnaissance to exploitation cannot be reliably automated.
• Technical ImpactpartialSuccessful exploitation gives limited control of the vulnerable component.

CISA publishes the decision points, not a final SSVC decision. The decision also depends on mission and well-being impact, which is a property of your deployment rather than of the vulnerability.

EPSS probability

0.27% probability of exploitation activity in the next 30 days.

EPSS percentile

Ranks above 19.5% of scored records. A rank, not a probability.

NVD base score

2.0 (CVSS v4.0), scored by the NVD independently of the CNA.

NVD CVSS vector

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

NVD analysis status

Deferred. NVD last modified this record on 2026-08-12.

Red Hat severity

No Red Hat rating. Red Hat rates the CVEs that affect its products.

Exploit-prediction scores from FIRST. Independent scoring and analysis status from the NVD. Vendor severity from Red Hat. Exploitation assessment and catalog membership from CISA.

Published

2026-08-07 20:30Z28 DAYS AGO

Last updated

2026-08-07 21:01Z28 DAYS AGO

Reserved

2026-08-07

Assigning CNA

VulDB

Record state

PUBLISHED

Severity

Medium (CVSS 5.1)

CNA CVSS vector

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

Weaknesses

• CWE-266Incorrect Privilege AssignmentBase
• CWE-284Improper Access ControlPillar

Data version

5.2

Document digest

c7ccc8426e2d6b718f075d6c86ffd348a1bcb53f7e86f3a76d2774e5dbd32911

• vuldb.comVDB-386998 | HKUDS nanobot MCP enabledTools Scope mcp.py connect_mcp_servers access controlhttps://vuldb.com/vuln/386998vdb-entrytechnical-description
• vuldb.comVDB-386998 | CTI Indicators (IOB, IOC, TTP, IOA)https://vuldb.com/vuln/386998/ctisignaturepermissions-required
• vuldb.comCVE-2026-19244 | CVE Analysis and Reporthttps://vuldb.com/cve/CVE-2026-19244third-party-advisory
• vuldb.comSubmit #865116 | HKUDS nanobot 0.2.1 Improper Access Control in MCP Capability Registration (CWE-284)https://vuldb.com/submit/865116third-party-advisory
• vuldb.comSubmit #865118 | HKUDS nanobot 0.2.1 Improper Access Control in MCP Wrapper Exposure (CWE-284) (Duplicate)https://vuldb.com/submit/865118third-party-advisory
• github.comhttps://github.com/HKUDS/nanobot/issues/4435issue-tracking
• gist.github.comhttps://gist.github.com/YLChen-007/3de5f50d167a878f7530f57ed018d508exploit
• github.comhttps://github.com/HKUDS/nanobot/pull/4436issue-trackingpatch
• github.comhttps://github.com/HKUDS/nanobot/releases/tag/v0.3.0patch
• github.comhttps://github.com/HKUDS/nanobot/product