Authorization bypass via wildcard tupleset evaluation
Published Nov 8, 2022 · Updated Apr 23, 2025
Authorization bypass in OpenFGA before 0.2.5 allows remote attackers to obtain access granted by mis-evaluated tuples via authorization requests. Tuple evaluation mishandles wildcard or userset tuples assigned to a tupleset relation on the right side of a from statement, treating unauthorized subjects as permitted. Exploitation requires an authorization model containing this relation and crafted tuples; impact is unauthorized access to data governed by affected checks.
Summary
What happened
Authorization bypass in OpenFGA before 0.2.5 allows remote attackers to obtain access granted by mis-evaluated tuples via authorization requests. Tuple evaluation mishandles wildcard or userset tuples assigned to a tupleset relation on the right side of a from statement, treating unauthorized subjects as permitted. Exploitation requires an authorization model containing this relation and crafted tuples; impact is unauthorized access to data governed by affected checks.
The record
- CVE
- CVE-2022-39352
- Published
- Nov 8, 2022
- Updated
- Apr 23, 2025
- Vendor
- OpenFGA
- Product
- OpenFGA
- Classifications
- CWE-863
- Attack vector
- network
- Privileges
- unauthenticated
Timeline
How it unfolded
- Nov 8, 2022CVE publishedPublication date reported by the CVE source.
- Apr 23, 2025Record updatedLatest update available in the CVE record.
Exploitability
Present is not the same as exploitable
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Is a vulnerable build present?
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- Affected versionversion=< 0.2.5
What conditions does exploitation require?
What is affected?
Attacks
What attackers are doing with it
Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.
Weakness, pattern, technique
Public exploit references
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Technologies
Your stack
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Your stack
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