CVE-2026-18255
Received Received - Intake

Quay Global Readonly Superuser Robot Token Exposure

Publication date: 2026-07-29

Last updated on: 2026-07-29

Assigner: redhat-SADP

Description
A flaw was found in Quay. A user configured in GLOBAL_READONLY_SUPER_USERS is able to view robot account tokens for repositories they are not a member of, allowing an attacker with read-only superuser privileges to impersonate any robot account.

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Meta Information

Published
2026-07-29
Last Modified
2026-07-29
Generated
2026-08-19
AI Q&A
2026-07-30
EPSS Evaluated
2026-08-18
NVD
CVE-2026-18255

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
redhat quay *

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Exploitability

CWE
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KEV
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CWE ID Description
CWE-863 The product performs an authorization check when an actor attempts to access a resource or perform an action, but it does not correctly perform the check.

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Executive Summary

This vulnerability in Quay allows a user with GLOBAL_READONLY_SUPER_USERS privileges to view robot account tokens for repositories they do not have access to. This means an attacker with read-only superuser rights can impersonate any robot account by obtaining its token.

Detection Guidance

To detect this vulnerability, review Quay configuration files for GLOBAL_READONLY_SUPER_USERS settings. Check logs for unauthorized access to robot account tokens. Inspect repository permissions and token exposure events. No specific commands are provided in the context.

Impact Analysis

An attacker could exploit this to gain unauthorized access to repositories, manipulate data, or perform actions on behalf of the robot account. This could lead to data breaches, unauthorized modifications, or service disruptions.

Compliance Impact

This vulnerability could lead to unauthorized access to sensitive data, violating confidentiality requirements in GDPR and HIPAA. Organizations may face compliance violations, legal penalties, and reputational damage due to data exposure.

Mitigation Strategies

Review and restrict GLOBAL_READONLY_SUPER_USERS privileges to only necessary users. Audit robot account tokens for unauthorized access. Apply Quay updates if available.

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