Vulnerability · Published Aug 6, 2026 · Assigned by VulDB

CVE-2026-18991nanocoai NanoClaw send_file core.ts path traversal

High 7.3

In plain English

A high-severity path traversal in NanoClaw from nanocoai. Proof-of-concept exploit code is public. The chance it is exploited in the next 30 days is estimated at 0.6% (higher than 50% of all known vulnerabilities).

Severity (CVSS 3.1)7.3High
Exploit odds (30 days)0.6%top 50.3% of all CVEs
Exploited in the wildNo reportsCISA SSVC: poc
Attack toolingNoneno public tooling known

Official 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.

Affected products (as reported)

VendorProductVersions
nanocoai NanoClaw 2.0.02.0.12.0.22.0.32.0.42.0.52.0.62.0.7

Weakness: CWE-22 · 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

References