{"id":"CVE-2026-100617","title":"Cap-go capgo.app fails to validate that principals in channel_permission_overrides belong to the organization, allowing authenticated app/org admins to grant channel permissions to non-member users","summary":"Cap-go capgo.app fails to validate that principals in channel_permission_overrides belong to the organization, allowing authenticated app/org admins to grant channel permissions to non-member users. Attackers with admin privileges can in…","severity":"high","cvss":8.8,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H","cwe":["CWE-862"],"vendor":"Cap-go","product":"capgo.app","affected":["capgo.app"],"published":"2026-09-26","updated":"2026-09-30","sourceUpdated":"2026-09-30T18:18:00.037","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-100617","references":[{"url":"https://github.com/Cap-go/capgo.app/security/advisories/GHSA-626c-p6fq-3whq","label":"disclosure@vulncheck.com"},{"url":"https://www.vulncheck.com/advisories/cap-go-capgo-app-authorization-bypass-via-channel-permission-overrides","label":"disclosure@vulncheck.com"},{"url":"https://github.com/Cap-go/capgo.app/security/advisories/GHSA-626c-p6fq-3whq","label":"134c704f-9b21-4f2e-91b3-4a467353bcc0"}],"tags":["nvd","cve.org","exploit-available"],"epss":0.00383,"epssPercentile":0.322,"exploitAvailable":true,"ssvc":{"exploitation":"poc","automatable":"no","technicalImpact":"total","timestamp":"2026-09-30T12:52:00.448236Z"},"ingestedAt":"2026-09-26T13:33:20.930Z","slug":"CVE-2026-100617","body":"## Overview\n\nCap-go capgo.app fails to validate that principals in channel_permission_overrides belong to the organization, allowing authenticated app/org admins to grant channel permissions to non-member users. Attackers with admin privileges can insert override rows with arbitrary external user UUIDs to grant channel-scoped permissions such as channel.promote_bundle to users outside the organization.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.","depth":"midnight","depthScore":60,"depthScoreParts":{"impact":48.4,"likelihood":0.1,"exploitation":12,"ransomware":0},"changes":[{"seq":213638,"id":"CVE-2026-100617","ts":1790777153957,"field":"exploit_available","old":"false","new":"true"}]}