CVE-2026-56402 · Symaro Security Advisory

Description

NanoClaw before 2.1.17 contains a privilege escalation vulnerability in the handleApprovalsResponse function that fails to verify responder role authorization. Attackers with a valid questionId can approve or reject privileged actions like package installation by submitting approval response payloads without proper role validation.

Severity (CVSS)

Base score	7.1
Severity	High
Version	CVSS 4.0
Vector	CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N
Provided by	CNA

Weaknesses

CWE-862 — Missing Authorization

Affected products

Vendor	Product	Versions
nanocoai	nanoclaw	0 to <2.1.17; 2.1.17

References

https://github.com/nanocoai/nanoclaw/pull/2478 (issue-tracking)
https://github.com/nanocoai/nanoclaw/commit/6227bd1a5b016fb1eb76411bb6681b4c924a51a0 (patch)
https://www.vulncheck.com/advisories/nanoclaw-privilege-escalation-via-unverified-approval-response-handler (third-party-advisory)

Authoritative sources

This page is a snapshot. For the latest enrichment and updates, view the record on CVE.org or the NVD.

Generated from the official CVE List on 24 Jun 2026 09:35 UTC.