{"id":"CVE-2026-56694","summary":"NanoClaw \u003c 2.1.0 - Privilege Escalation via Forged Channel Approval Callback","details":"NanoClaw before 2.1.0 contains a privilege escalation vulnerability in the channel-registration approval flow where handleChannelApprovalResponse fails to validate admin privileges over target agent groups. Scoped admins can submit forged or stale connect callback values to wire messaging channels into out-of-scope agent groups, exposing unauthorized groups to unapproved channels and enabling unauthorized observation or control of restricted agent group activity.","modified":"2026-08-12T03:51:31.623620185Z","published":"2026-06-23T15:35:41.347Z","database_specific":{"cna_assigner":"VulnCheck","cwe_ids":["CWE-863"],"osv_generated_from":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/56xxx/CVE-2026-56694.json"},"references":[{"type":"ADVISORY","url":"https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/56xxx/CVE-2026-56694.json"},{"type":"ADVISORY","url":"https://nvd.nist.gov/vuln/detail/CVE-2026-56694"},{"type":"ADVISORY","url":"https://www.vulncheck.com/advisories/nanoclaw-privilege-escalation-via-forged-channel-approval-callback"},{"type":"REPORT","url":"https://github.com/nanocoai/nanoclaw/pull/2566"},{"type":"FIX","url":"https://github.com/nanocoai/nanoclaw/commit/0eef8fafdd7c475ab5fd8d37ea566a81e74cd834"},{"type":"PACKAGE","url":"https://github.com/nanocoai/nanoclaw"}],"affected":[{"ranges":[{"type":"GIT","repo":"https://github.com/nanocoai/nanoclaw","events":[{"introduced":"0"},{"fixed":"092487d7adf3d22919d4272601f6f392bccd0334"},{"fixed":"0eef8fafdd7c475ab5fd8d37ea566a81e74cd834"}],"database_specific":{"extracted_events":[{"introduced":"0"},{"fixed":"2.1.0"}],"source":["DESCRIPTION","REFERENCES"]}}],"versions":["v2.0.64","v2.0.63","v2.0.54","v1.2.0","v1.1.6"],"database_specific":{"source":"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-56694.json"}}],"schema_version":"1.9.0","severity":[{"type":"CVSS_V4","score":"CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA:N"}]}