PT-2026-51529 · Nanocoai · Nanoclaw

Chia Min Jun Lennon · Published 2026-06-23 · Updated 2026-06-23 · CVE-2026-56402

Mitre

CVSS v3.1

6.5

Medium

Base vector

AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N

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.

Exploit

Fix

Missing Authorization

Weakness Enumeration

CWE-862

Related Identifiers

CVE-2026-56402

Affected Products

Nanoclaw

References · 4

• 🔥 https://github.com/nanocoai/nanoclaw/pull/2478 · Exploit
• https://github.com/nanocoai/nanoclaw/commit/6227bd1a5b016fb1eb76411bb6681b4c924a51a0 · Patch
• https://nvd.nist.gov/vuln/detail/CVE-2026-56402 · Security Note
• https://vulncheck.com/advisories/nanoclaw-privilege-escalation-via-unverified-approval-response-handler · Note