CVE-2026-56335

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.

CVSS v3 6.5 MEDIUM

6.5^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.8 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact HIGH

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
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
https://github.com/Cap-go/capgo/security/advisories/GHSA-ph9c-vwjq-pqhj

Configurations

No configuration.

History

10 Jul 2026, 16:16

Type	Values Removed	Values Added
References	~~() https://github.com/Cap-go/capgo/security/advisories/GHSA-ph9c-vwjq-pqhj -~~	() https://github.com/Cap-go/capgo/security/advisories/GHSA-ph9c-vwjq-pqhj -

10 Jul 2026, 15:16

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-07-10 15:16

Updated : 2026-07-10 16:16

NVD link : CVE-2026-56335

Mitre link : CVE-2026-56335

CVE.ORG link : CVE-2026-56335

JSON object : View

Products Affected

No product.

CWE

CWE-284

Improper Access Control

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