CVE-2026-56335

Description

Capgo before 12.128.2 contains an authorization bypass vulnerability where write-scoped API keys can directly mutate protected channel configuration fields through PostgREST by exploiting a null authentication check in the immutability trigger. Attackers with write API keys can modify sensitive channel attributes such as public, allow_emulator, and security-related flags outside intended application routes.

References

• https://github.com/Cap-go/capgo/security/advisories/GHSA-ph9c-vwjq-pqhj
• https://www.vulncheck.com/advisories/capgo-channel-configuration-mutation-via-write-scoped-api-keys