{"id":"CVE-2026-56694","title":"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","summary":"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 forge…","severity":"medium","cvss":5.4,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N","cwe":["CWE-863"],"vendor":"nanocoai","product":"nanoclaw","affected":["nanoclaw < 2.1.0"],"published":"2026-06-23","updated":"2026-09-17","sourceUpdated":"2026-09-17T18:16:52.863","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-56694","references":[{"url":"https://github.com/nanocoai/nanoclaw/commit/0eef8fafdd7c475ab5fd8d37ea566a81e74cd834","label":"disclosure@vulncheck.com"},{"url":"https://github.com/nanocoai/nanoclaw/pull/2566","label":"disclosure@vulncheck.com"},{"url":"https://www.vulncheck.com/advisories/nanoclaw-privilege-escalation-via-forged-channel-approval-callback","label":"disclosure@vulncheck.com"}],"tags":["nvd","cve.org"],"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"partial","timestamp":"2026-06-23T16:51:29.386797Z"},"epss":0.00294,"epssPercentile":0.19571,"ingestedAt":"2026-09-17T18:25:15.973Z","slug":"CVE-2026-56694","body":"## Overview\n\nNanoClaw 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.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"sunlit","depthScore":30,"depthScoreParts":{"impact":29.7,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[]}