A security vulnerability has been detected in nanocoai NanoClaw up to 2.0.64. This affects an unknown part of the file container/agent-runner/src/mcp-tools/core.ts of the component send_file. Such manipulation leads to path traversal. The attack can be executed remotely. The exploit has been disclosed publicly and may be used. The project was informed of the problem early through an issue report but has not responded yet.

Attack Vector Network

Attack Complexity Low

Privileges Required None

Attack Requirements None

User Interaction None

Vulnerable System Confidentiality Impact Low

Vulnerable System Integrity Impact Low

Vulnerable System Availability Impact Low

Subsequent System Confidentiality Impact None

Subsequent System Integrity Impact None

Subsequent System Availability Impact None

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact Low

Integrity Impact Low

Availability Impact Low

User Interaction None

Attack Vector Network

Attack Complexity Low

Privileges Required None

Scope Unchanged

Confidentiality Impact Low

Integrity Impact Low

Availability Impact Low

User Interaction None

Access Vector Network

Access Complexity Low

Authentication None

Confidentiality Impact Partial

Integrity Impact Partial

Availability Impact Partial

This CVE is not in the KEV list.

The EPSS score is 0.00493.

Exploitation poc

Automatable yes

Technical Impact partial

Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).

Vendor Product Default status Versions
nanocoai NanoClaw affected
Version Status Constraints
2.0.0 affected —
2.0.1 affected —
2.0.2 affected —
2.0.3 affected —
2.0.4 affected —
2.0.5 affected —
2.0.6 affected —
2.0.7 affected —
2.0.8 affected —
2.0.9 affected —
2.0.10 affected —
2.0.11 affected —
2.0.12 affected —
2.0.13 affected —
2.0.14 affected —
2.0.15 affected —
2.0.16 affected —
2.0.17 affected —
2.0.18 affected —
2.0.19 affected —
2.0.20 affected —
2.0.21 affected —
2.0.22 affected —
2.0.23 affected —
2.0.24 affected —
2.0.25 affected —
2.0.26 affected —
2.0.27 affected —
2.0.28 affected —
2.0.29 affected —
2.0.30 affected —
2.0.31 affected —
2.0.32 affected —
2.0.33 affected —
2.0.34 affected —
2.0.35 affected —
2.0.36 affected —
2.0.37 affected —
2.0.38 affected —
2.0.39 affected —
2.0.40 affected —
2.0.41 affected —
2.0.42 affected —
2.0.43 affected —
2.0.44 affected —
2.0.45 affected —
2.0.46 affected —
2.0.47 affected —
2.0.48 affected —
2.0.49 affected —
2.0.50 affected —
2.0.51 affected —
2.0.52 affected —
2.0.53 affected —
2.0.54 affected —
2.0.55 affected —
2.0.56 affected —
2.0.57 affected —
2.0.58 affected —
2.0.59 affected —
2.0.60 affected —
2.0.61 affected —
2.0.62 affected —
2.0.63 affected —
2.0.64 affected —

No data.

No data.

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Vendors Products
Nanocoai Subscribe
Nanoclaw Subscribe

Project Subscriptions

Vendors Products
Nanocoai Subscribe
Nanoclaw Subscribe
Advisories

No advisories yet.

Fixes

Solution

No solution given by the vendor.

Workaround

No workaround given by the vendor.

References
Link Providers
https://github.com/nanocoai/nanoclaw/ cve-icon
https://github.com/nanocoai/nanoclaw/issues/2760 cve-icon
https://vuldb.com/cve/CVE-2026-18991 cve-icon
https://vuldb.com/submit/862563 cve-icon
https://vuldb.com/vuln/386367 cve-icon
https://vuldb.com/vuln/386367/cti cve-icon
History

Thu, 06 Aug 2026 15:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Thu, 06 Aug 2026 03:15:00 +0000

Type Values Removed Values Added
Description A security vulnerability has been detected in nanocoai NanoClaw up to 2.0.64. This affects an unknown part of the file container/agent-runner/src/mcp-tools/core.ts of the component send_file. Such manipulation leads to path traversal. The attack can be executed remotely. The exploit has been disclosed publicly and may be used. The project was informed of the problem early through an issue report but has not responded yet.
Title nanocoai NanoClaw send_file core.ts path traversal
First Time appeared Nanocoai
Nanocoai nanoclaw
Weaknesses CWE-22
CPEs cpe:2.3:a:nanocoai:nanoclaw:*:*:*:*:*:*:*:*
Vendors & Products Nanocoai
Nanocoai nanoclaw
References
Metrics cvssV2_0

{'score': 7.5, 'vector': 'AV:N/AC:L/Au:N/C:P/I:P/A:P/E:POC/RL:ND/RC:UR'}

cvssV3_0

{'score': 7.3, 'vector': 'CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R'}

cvssV3_1

{'score': 7.3, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L/E:P/RL:X/RC:R'}

cvssV4_0

{'score': 6.9, 'vector': 'CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N/E:P'}

Projects

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cve-icon MITRE

Status: PUBLISHED

Assigner: VulDB

Published:

Updated: 2026-08-06T14:52:17.359Z

Reserved: 2026-08-05T18:48:40.561Z

Link: CVE-2026-18991

cve-icon Vulnrichment

Updated: 2026-08-06T14:52:12.756Z

cve-icon NVD

No data.

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-08-06T15:15:12Z

Weaknesses