---
id: CVE-2026-56692
title: >-
  NanoClaw before 2.1.17 contains a symlink following vulnerability in
  forwardAttachedFiles that allows container-controlled agents to exfiltrate
  host-readable files
summary: >-
  NanoClaw before 2.1.17 contains a symlink following vulnerability in
  forwardAttachedFiles that allows container-controlled agents to exfiltrate
  host-readable files. The host validates attachment filenames using only
  isSafeAttachmentName …
severity: medium
cvss: 5.5
cvssVector: 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N'
cwe:
  - CWE-59
vendor: nanocoai
product: nanoclaw
affected:
  - nanoclaw < 2.1.17
published: '2026-06-23'
updated: '2026-09-17'
sourceUpdated: '2026-09-17T18:16:51.767'
source: NVD
sourceUrl: 'https://nvd.nist.gov/vuln/detail/CVE-2026-56692'
references:
  - url: >-
      https://github.com/nanocoai/nanoclaw/commit/28032bc0eca76c91fb3d8be0013e8bcaf2f5aeae
    label: disclosure@vulncheck.com
  - url: 'https://github.com/nanocoai/nanoclaw/pull/2468'
    label: disclosure@vulncheck.com
  - url: >-
      https://www.vulncheck.com/advisories/nanoclaw-arbitrary-file-read-via-symlink-following-in-forwardattachedfiles
    label: disclosure@vulncheck.com
tags:
  - nvd
  - cve.org
ssvc:
  exploitation: none
  automatable: 'no'
  technicalImpact: partial
  timestamp: '2026-06-24T13:57:57.281930Z'
epss: 0.00166
epssPercentile: 0.05152
ingestedAt: '2026-09-17T18:25:15.972Z'
---

## Overview

NanoClaw before 2.1.17 contains a symlink following vulnerability in forwardAttachedFiles that allows container-controlled agents to exfiltrate host-readable files. The host validates attachment filenames using only isSafeAttachmentName before copying with fs.copyFileSync, which follows symlinks without containment checks, allowing malicious agents to disclose arbitrary host files.

## Remediation

Refer to the linked advisories for vendor-supplied fixes and affected version ranges.