CVE-2026-56257 Capgo - Authorization Bypass in App Ownership Transfer via Direct PostgREST Update
Attackers can bypass ownership transfer workflows by directly modifying app ownership via PostgREST, leading to split-brain access control issues.
- Exploited in the wild
- Not known
- Login needed
- Any signed-in user
- Attackable
- Over the internet
- Victim action needed
- Not needed
- Fix
- None listed
What is CVE-2026-56257?
CVE-2026-56257 is a high-severity missing authorization vulnerability in Capgo, published on 24 Jun 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Official description
Capgo before 12.128.2 allows direct patching of public.apps.owner_org through PostgREST, bypassing the transfer_app() workflow and creating split-brain ownership. Attackers can directly update apps.owner_org while leaving app_versions.owner_org unchanged, enabling old-org keys to retain access to version data while new-org keys control the app record.
Weakness: CWE-284
Which versions are affected by CVE-2026-56257?
How do I fix CVE-2026-56257?
No fix has been published for CVE-2026-56257 yet. Limit exposure of the affected software until one is available.
Upgrade, and check permissions on every request on the server, not only in the interface. More about Missing authorization.
Is CVE-2026-56257 being exploited?
It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-56257 exists.
Sources
Also known as GHSA-v9jp-r5wh-qqcp.