CVE-2022-23542Network attack vector

Authorization bypass via stale tuple type acceptance

Published Dec 20, 2022 · Updated Apr 16, 2025

Improper authorization in OpenFGA 0.3.0 allows remote attackers to retain access after a model changes its direct-relation type. Direct relationship lookups reuse tuples created under an earlier model without filtering them against the updated type restriction. Exploitation requires a version 1.1 model, tuples written under its original restriction, a replacement type restriction, and checks against the updated model; stale tuple holders then receive authorization intended only for the new type.

CVSS severity7.7
High
EPSS probability0.91%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkNot available
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Summary

What happened

Improper authorization in OpenFGA 0.3.0 allows remote attackers to retain access after a model changes its direct-relation type. Direct relationship lookups reuse tuples created under an earlier model without filtering them against the updated type restriction. Exploitation requires a version 1.1 model, tuples written under its original restriction, a replacement type restriction, and checks against the updated model; stale tuple holders then receive authorization intended only for the new type.

The record

CVE
CVE-2022-23542
Published
Dec 20, 2022
Updated
Apr 16, 2025
Vendor
OpenFGA
Product
OpenFGA
Classifications
CWE-285, T1190
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Dec 20, 2022CVE publishedPublication date reported by the CVE source.
  2. Apr 16, 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?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion== 0.3.0

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

OpenFGA · OpenFGAversion== 0.3.0

Published CVSS scores

9.8NISTCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
7.7GitHub, Inc.CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:H/A:L

CVSS describes severity. EPSS estimates exploitation probability.

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.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 10, 2026Sep 16, 2026
Latest reporting daySep 16, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-285Improper Authorization
T1190Exploit Public-Facing Application

Public exploit references

No public exploit references are available in this record.

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Technologies

Your stack

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Your stack

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