CVE-2026-100611 Details
Description
Capgo (capgo.app backend, versions ≤ 12.261.0) improperly restricts which roles the apikey_manager organization role may bind to newly created API keys. When an authenticated user holding only apikey_manager (permissions org.manage_apikeys and org.read) calls POST /apikey with a JWT session, the only checks applied are the org.manage_apikeys permission, a fixed deny-list of assignable role names (APIKEY_MANAGER_DENIED_ASSIGNABLE_ROLES in public/apikey/scope.ts), and a priority-rank comparison in createRoleBindingForPrincipal (private/role_bindings.ts). No check verifies that the caller actually holds the permissions conferred by the role being assigned. Because the deny-list omits the deploy roles app_developer, app_uploader, channel_developer and channel_uploader, and apikey_manager is seeded with priority_rank 78 — higher than those roles' ranks (68, 66, 58, 57) — the rank check also passes. As a result, an apikey_manager who cannot upload bundles or promote channels can mint an API key bound to a deploy role and use it to push arbitrary OTA JavaScript updates to all end users of the organization's apps. As of the advisory publication no patched version was available.
A vulnerability exists in the Capgo backend (versions through 12.261.0) that allows users with the apikey_manager role to improperly assign deploy-related roles to newly created API keys. This issue arises because the apikey_manager role, which is meant for managing API keys without direct deployment privileges, can exploit a flaw in the role assignment process. When an apikey_manager user creates an API key, the system only checks for the appropriate permissions and adheres to a fixed deny-list of roles. However, the deny-list fails to include key deploy roles, allowing the apikey_manager to assign these roles and gain unauthorized deployment capabilities, such as pushing JavaScript updates to all users of the organization's apps.
As of the advisory publication, no patched version was available. However, a fix has been proposed in a pull request that prevents apikey_manager users from assigning deploy roles to API keys.
Metrics
CVSS 4.0 Severity and Vector Strings:
CVSS 3.x Severity and Vector Strings:
No data available for CVSS Version 2.0 on this CVE.
Volerion
Assessed Sep 26, 2026CISA-ADP
Assessed Sep 28, 2026References to Advisories, Solutions, and Tools
By selecting these links, you will be leaving this site. These are references gathered from the official CVE record and are not endorsed by Volerion.
| URL | Source(s) | Tag(s) |
|---|---|---|
| https://github.com/Cap-go/capgo.app/security/advisories/GHSA-2x4j-p4pr-fvp8 | CISA-ADP | AdvisoryExploitTechnical AnalysisVendor |
| https://github.com/Cap-go/capgo.app/security/advisories/GHSA-2x4j-p4pr-fvp8 | [email protected] | AdvisoryExploitTechnical AnalysisVendor |
| https://www.vulncheck.com/advisories/capgo-apikey-manager-role-privilege-escalation-via-incomplete-role-deny-list | [email protected] | Advisory |
Weakness Enumeration
| CWE-ID | CWE Name | Source |
|---|---|---|
| CWE-269 | Improper Privilege Management | [email protected] |
Affected Products
| Product | Versions |
|---|---|
| Capgo | <= 12.261.0 (semver) |
CPE
Remediation
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Change History
3 change records found show changes
| Date | Action | Recorded By |
|---|---|---|
| Sep 30, 2026 | CVE Modified | [email protected] |
| Sep 28, 2026 | CVE Modified | CISA-ADP |
| Sep 26, 2026 | New CVE Received | [email protected] |
Volerion