What is CVE-2026-56692?

CVE-2026-56692 is a medium-severity vulnerability in Nanocoai Nanoclaw, classified under Improper Link Resolution Before File Access. CVSS score: 5.5/10. Published 2026-06-23.

How severe is CVE-2026-56692?

Medium severity. CVSS v3 base score is 5.5 out of 10.

Vulnerability in Nanocoai Nanoclaw

CVE-2026-56692

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 be…

EPSS: 0.001 (3.1th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.5 (Medium). Vector: CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N.

Affected products

Nanocoai Nanoclaw — versions 0, 2.1.17

Weakness classification (CWE)

CWE-59 — Improper Link Resolution Before File Access

References

Pull Request (issue-tracking)
Patch Commit (patch)
disclosure@vulncheck.com (third-party-advisory)

Frequently asked questions

What is CVE-2026-56692?: CVE-2026-56692 is a medium-severity vulnerability in Nanocoai Nanoclaw, classified under Improper Link Resolution Before File Access. CVSS score: 5.5/10. Published 2026-06-23.
How severe is CVE-2026-56692?: Medium severity. CVSS v3 base score is 5.5 out of 10.