CVE-2026-56402

NanoClaw < 2.1.17 - Privilege Escalation via Unverified Approval Response Handler

Published Jun 23, 2026 CVSS 4.0 · 7.1 High EPSS < 1% KEV · Not listed
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.

Remediation

No solution or workaround provided in the CVE record

Tracking

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Advisories

No advisories available
History
Type Values Removed Values Added
CPEs cpe:2.3:a:nanoco:nanoclaw:*:*:*:*:*:*:*:*
Type Values Removed Values Added
First Time appeared Nanoco
Nanoco nanoclaw
Vendors & Products Nanoco
Nanoco nanoclaw
Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Type Values Removed Values Added
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.
Title NanoClaw < 2.1.17 - Privilege Escalation via Unverified Approval Response Handler
Weaknesses CWE-862
References
Metrics cvssV3_1

{'score': 6.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N'}

cvssV4_0

{'score': 7.1, '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'}

Weaknesses

Sources

Status
PUBLISHED
Assigner
VulnCheck
Published
Updated
Sep 17, 2026, 6:57 PM
Reserved
Jun 21, 2026, 12:37 PM
Status
Deferred
Published
Jun 23, 2026, 4:17 PM
Modified
Oct 26, 2026, 11:10 AM