CVE-2026-56320: Capgo - Org/App Scope Mismatch in Device Creation Endpoint

Severity: high (CVSS 7.1 v3.1)
Exploited in the wild: not listed in CISA KEV
EPSS: 0.3% probability of exploitation in the next 30 days
Public exploit or detection template: none known
Published: 2026-06-30 · updated 2026-10-25
Weakness: CWE-285

Description

Capgo before 12.128.2 contains an authorization flaw in POST /private/create_device that accepts a caller-supplied org_id parameter without validating it matches the target app's owner organization. Authenticated attackers can create device records for an application using a foreign organization identifier, bypassing the intended org/app authorization boundary.

Affected products

Capgo: before 12.128.2 — fixed in 12.128.2

How to fix

Upgrade to a fixed version: Capgo 12.128.2. Check the vendor advisory for mitigations.

References

https://github.com/Cap-go/capgo/security/advisories/GHSA-mhrc-qhq8-872f
https://www.vulncheck.com/advisories/capgo-org-app-scope-mismatch-in-device-creation-endpoint
https://github.com/Cap-go/capgo/security/advisories/GHSA-mhrc-qhq8-872f

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