CVE-2026-100617

HIGHCVSS 8.8

Description

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 insert override rows with arbitrary external user UUIDs to grant channel-scoped permissions such as channel.promote_bundle to users outside the organization.

Timeline

Published:September 26th, 2026 2:16 PM

Last modified:September 30th, 2026 6:18 PM

CVSS Scoring

CVSS v3: 8.8 (HIGH)

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H

Weaknesses (CWE)

CWE-862

References & Reports

Advisories, patches, and third-party reports

https://github.com/Cap-go/capgo.app/security/advisories/GHSA-626c-p6fq-3whq
https://www.vulncheck.com/advisories/cap-go-capgo-app-authorization-bypass-via-channel-permission-overrides
https://github.com/Cap-go/capgo.app/security/advisories/GHSA-626c-p6fq-3whq

Source: NIST NVD · Data may lag official sources by up to one minute