CVE-2025-64751Network attack vector

Authorization bypass via unconditional wildcard evaluation

Published Nov 21, 2025 · Updated Nov 21, 2025

Improper authorization in OpenFGA 1.4.0 through 1.11.0 allows remote authenticated users to obtain incorrect access decisions. The Check and ListObjects evaluators incorrectly treat an unconditional public wildcard tuple as satisfying a relation defined only for conditional public access. Exploitation requires a model that permits conditional public access on a relation, excludes unconditional public access for that relation, and contains an unconditional wildcard tuple of the same type; affected applications can then grant access that policy intended to deny.

CVSS severity5.8
Medium
EPSS probability0.29%
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 1.4.0 through 1.11.0 allows remote authenticated users to obtain incorrect access decisions. The Check and ListObjects evaluators incorrectly treat an unconditional public wildcard tuple as satisfying a relation defined only for conditional public access. Exploitation requires a model that permits conditional public access on a relation, excludes unconditional public access for that relation, and contains an unconditional wildcard tuple of the same type; affected applications can then grant access that policy intended to deny.

The record

CVE
CVE-2025-64751
Published
Nov 21, 2025
Updated
Nov 21, 2025
Vendor
OpenFGA
Product
OpenFGA
Classifications
CWE-285, T1190
Attack vector
network
Privileges
authenticated

Timeline

How it unfolded

  1. Nov 21, 2025CVE publishedPublication date reported by the CVE source.
  2. Nov 21, 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=>= 1.4.0, < 1.11.1

What conditions does exploitation require?

Attack vectornetwork
Required privilegesauthenticated

What is affected?

OpenFGA · OpenFGAversion=>= 1.4.0, < 1.11.1

Published CVSS scores

8.8NIST NVDCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H
5.8GitHub, Inc.CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:N/VI:N/VA:N/SC:H/SI:H/SA:H

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.

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No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesauthenticated
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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