CVE-2026-61709

Published: Set 16, 2026 Last Modified: Set 18, 2026

ExploitDB:

Other exploit source:

Google Dorks:

MEDIUM 5,3

Source: [email protected]

Attack Vector: network

Attack Complexity: high

Privileges Required: low

User Interaction: none

Scope: unchanged

Confidentiality: high

Integrity: none

Availability: none

Description

AI Translation Available

OpenFGA is an authorization and permission engine built for developers. Prior to 1.18.1, the ListUsers API could return a user that should have been excluded when an authorization relation used an intersection containing a base but not excluded operand, the base was granted through a type-bound public wildcard, and the excluded user also had a concrete tuple through another intersection operand. In pkg/server/commands/listusers/list_users_rpc.go, expandIntersection counted the concrete tuple and wildcard without first rejecting entries in excludedUsersMap. Applications that used ListUsers to enumerate or enforce access could therefore treat an excluded user as authorized. This issue is fixed in version 1.18.1.

281

Improper Preservation of Permissions

Draft

Abstraction: Base Structure: Simple

Common Consequences

Security Scopes Affected:

Confidentiality Integrity

Potential Impacts:

Read Application Data Modify Application Data

Applicable Platforms

All platforms may be affected

View CWE Details

863

Incorrect Authorization

Incomplete

Abstraction: Class Structure: Simple

Common Consequences

Security Scopes Affected:

Confidentiality Integrity Access Control Availability

Potential Impacts:

Read Application Data Read Files Or Directories Modify Application Data Modify Files Or Directories Gain Privileges Or Assume Identity Bypass Protection Mechanism Execute Unauthorized Code Or Commands Dos: Crash, Exit, Or Restart Dos: Resource Consumption (Cpu) Dos: Resource Consumption (Memory) Dos: Resource Consumption (Other)