CVE-2026-18991

· HIGHReceived

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CVSS v3.1

7.3

CVSS v4.0

5.5

EPSS

0.49%

Published

Aug 6, 2026

Modified

Aug 6, 2026

Public PoC / Exploit

All weaponized →

No public PoC or exploit code indexed for this CVE.

Links to public security research (Exploit-DB, Nuclei, Trickest, GitHub) for defensive use only.

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.

CVSS Vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:L

Weaknesses (CWE)

CWE-22

References (6)

https://github.com/nanocoai/nanoclaw/

https://github.com/nanocoai/nanoclaw/issues/2760

https://vuldb.com/cve/CVE-2026-18991

https://vuldb.com/submit/862563

https://vuldb.com/vuln/386367

https://vuldb.com/vuln/386367/cti

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