CVE-2026-56402
MEDIUMNanoClaw < 2.1.17 - Privilege Escalation via Unverified Approval Response Handler
Title source: cnaDescription
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.
References (3)
Core 3
Core References
Patch patch
Patch Commit
https://github.com/nanocoai/nanoclaw/commit/6227bd1a5b016fb1eb76411bb6681b4c924a51a0
Third Party Advisory third-party-advisory
https://www.vulncheck.com/advisories/nanoclaw-privilege-escalation-via-unverified-approval-response-handler
Scores
CVSS v3
6.5
EPSS
0.0021
EPSS Percentile
11.8%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N
CISA SSVC
Vulnrichment
Exploitation
poc
Automatable
no
Technical Impact
partial
Details
CWE
CWE-862
Status
published
Products (2)
nanocoai/nanoclaw
< 2.1.17
nanocoai/nanoclaw
2.1.17
Published
Jun 23, 2026
Tracked Since
Jun 23, 2026