Twenty is an open-source CRM (customer relationship management) platform. Prior to 2.22.0, field-level read permission is enforced on selected output fields but not on GraphQL or REST filter predicates. A workspace member or API key with permission to read an object but not a particular field can reference that denied field in direct filters, relation filters, or persisted view filters.
The resulting totalCount and row presence reveal whether guesses match the real column, forming a boolean/count oracle that can reconstruct denied field values for records exposed by the principal's row-level policy. This issue is fixed in version 2.22.0.
Attack Parameters
Attack Vector
Network
Can be exploited remotely
Attack Complexity
Low
Easy to exploit
Attack Requirements
None
No additional conditions
Privileges Required
Low
Basic privileges needed
User Interaction
None
No user interaction needed
Impact Assessment
Confidentiality
High
Complete data leak
Integrity
None
No data modification
Availability
None
No disruption
CVSS Vector v4.0
Weakness Type (CWE)
References 4
https://github.com/twentyhq/twenty/commit/a5108d512f754a937860bda5e0c2c40c7266e…
security-advisories@github.com
https://github.com/twentyhq/twenty/pull/22873
security-advisories@github.com
https://github.com/twentyhq/twenty/releases/tag/twenty/v2.22.0
security-advisories@github.com
https://github.com/twentyhq/twenty/security/advisories/GHSA-v93q-4jcx-7p9m
security-advisories@github.com