CVE-2026-56402CWE-862broken-access-control

CVE-2026-56402

Medium · published June 23, 2026

CVSS v3.1
6.5
EPSS
0%
Percentile
30.4
In the wild
Unconfirmed
What it is

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.

The record
Technical detail
CVSS v3.1
6.5 · MEDIUM
Vector
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
CVSS v4.0
Not supplied
EPSS
0.00376 · 30.4th percentile
Weakness
CWE-862 · Missing Authorization
Published
2026-06-23T20:17Z
References (4)
https://github.com/nanocoai/nanoclaw/commit/6227bd1a5b016fb1eb76411bb6681b4c924a51a0 · [email protected]https://github.com/nanocoai/nanoclaw/pull/2478 · [email protected]https://www.vulncheck.com/advisories/nanoclaw-privilege-escalation-via-unverified-approval-response-handler · [email protected]https://github.com/nanocoai/nanoclaw/pull/2478 · 134c704f-9b21-4f2e-91b3-4a467353bcc0
EPSS history
Timeline
  • 23 JUN 15:34Z
    NanoClaw < 2.1.17 - Privilege Escalation via Unverified Approval Response Handler
    cvelistv5