CVE-2026-56692

NanoClaw < 2.1.17 - Arbitrary File Read via Symlink Following in forwardAttachedFiles

Published Jun 23, 2026 CVSS 4.0 · 6.8 Medium EPSS < 1% KEV · Not listed
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
CPEs cpe:2.3:a:nanoco:nanoclaw:*:*:*:*:*:*:*:*
Type Values Removed Values Added
First Time appeared Nanoco
Nanoco nanoclaw
Vendors & Products Nanoco
Nanoco nanoclaw
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
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.
Title NanoClaw < 2.1.17 - Arbitrary File Read via Symlink Following in forwardAttachedFiles
Weaknesses CWE-59
References
Metrics cvssV3_1

{'score': 5.5, 'vector': 'CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N'}

cvssV4_0

{'score': 6.8, 'vector': 'CVSS:4.0/AV:L/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
VulnCheck
Published
Updated
Sep 17, 2026, 6:57 PM
Reserved
Jun 22, 2026, 5:09 PM
Status
Deferred
Published
Jun 23, 2026, 4:17 PM
Modified
Oct 26, 2026, 11:10 AM