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CVE-2026-56692— NanoClaw < 2.1.17 - Arbitrary File Read via Symlink Following in forwardAttachedFiles

Quick assessment

Affected
nanocoai nanoclaw
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

NanoCo NanoClaw是NanoCo组织的一个轻量级个人AI代理平台。 NanoCo NanoClaw 2.1.17之前版本存在后置链接漏洞，该漏洞源于forwardAttachedFiles中存在符号链接跟随问题，主机仅使用isSafeAttachmentName验证附件文件名，然后通过fs.copyFileSync进行复制，该操作会跟随符号链接而缺乏包含检查，可能导致受容器控制的代理泄露主机可读文件。

CVSS 5.5 · Medium EPSS 0.13% · P3

Affected Version Matrix 2

VendorProduct Version RangeStatus
nanocoai nanoclaw < 2.1.17 affected
2.1.17 unaffected
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I. Basic Information for CVE-2026-56692

Vulnerability Information
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Vulnerability Title
NanoClaw < 2.1.17 - Arbitrary File Read via Symlink Following in forwardAttachedFiles
Source: CVE Program / CVE List V5
Vulnerability Description
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.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
在文件访问前对链接解析不恰当(链接跟随)
Source: CVE Program / CVE List V5
Vulnerability Title
NanoCo NanoClaw 后置链接漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
NanoCo NanoClaw是NanoCo组织的一个轻量级个人AI代理平台。 NanoCo NanoClaw 2.1.17之前版本存在后置链接漏洞，该漏洞源于forwardAttachedFiles中存在符号链接跟随问题，主机仅使用isSafeAttachmentName验证附件文件名，然后通过fs.copyFileSync进行复制，该操作会跟随符号链接而缺乏包含检查，可能导致受容器控制的代理泄露主机可读文件。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)

Affected Products

Vendor Product Affected Versions CPE Subscribe
nanocoai nanoclaw 0 ~ 2.1.17 -

II. Public POCs for CVE-2026-56692

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III. Intelligence Information for CVE-2026-56692

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Patches & Fixes for CVE-2026-56692 (2)

Vendor Advisories for CVE-2026-56692 (1)

Same Patch Batch · nanocoai · 2026-06-23 · 4 CVEs total

CVE-2026-56402 6.5 MEDIUM NanoClaw < 2.1.17 - Privilege Escalation via Unverified Approval Response Handler
CVE-2026-56693 5.5 MEDIUM NanoClaw < 2.1.17 - Privilege Escalation via Unauthorized create_agent System Action
CVE-2026-56694 5.4 MEDIUM NanoClaw < 2.1.0 - Privilege Escalation via Forged Channel Approval Callback

IV. Related Vulnerabilities

Same product: nanoclaw
Same vendor: nanocoai
Same weakness: CWE-59

V. Comments for CVE-2026-56692

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