Vulnerability details
CVE-2026-56402
nanocoai nanoclaw
NanoClaw < 2.1.17 - Privilege Escalation via Unverified Approval Response Handler
CVSS 4.0
7.1High
Official 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.
CVSS scores
| Score | Version | Source | Vector |
|---|---|---|---|
| 7.1High | 4.0 | CVEProject cvelistV5 (CNA) (VulnCheck) | 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 |
| 6.5Medium | 3.1 | CVEProject cvelistV5 (CNA) (VulnCheck) | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:H/A:N |
Affected products
| Vendor | Product | Versions | Source |
|---|---|---|---|
| nanocoai | nanoclaw | v < 2.1.17 | CVEProject cvelistV5 (CNA) |
References and advisories
3
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Details
- Published
- 2026-06-23
- Last updated
- 2026-09-17
- State
- Published
- Assigner (CNA)
- VulnCheck
Exploit prediction (EPSS)
0.37%
Probability of exploitation in 30 days
31.7%
Percentile (among all CVEs)
SSVC assessment (CISA)
- Automatable
- No
- Exploitation
- Proof of concept
- Technical impact
- Partial
Weaknesses (CWE)
- CWE-862Missing Authorization