CVE-2026-18255: Incorrect Authorization in Red Hat Red Hat Quay 3
CVE-2026-18255 is a vulnerability in Red Hat Quay 3 where users configured with GLOBAL_READONLY_SUPER_USERS privileges can view robot account tokens for repositories they do not belong to. This flaw allows an attacker with read-only superuser privileges to impersonate any robot account. The vulnerability has a high severity with a CVSS score of 7.2. No specific affected versions or patch information is provided in the available data.
AI Analysis
Technical Summary
This vulnerability in Red Hat Quay 3 involves incorrect authorization that permits users in the GLOBAL_READONLY_SUPER_USERS group to access robot account tokens for repositories outside their membership. This unauthorized access enables impersonation of robot accounts by attackers holding read-only superuser privileges. The CVSS 3.1 score of 7.2 reflects high impact on confidentiality, integrity, and availability. There is no vendor advisory content indicating an available patch or mitigation, and no affected versions are explicitly stated.
Potential Impact
An attacker with read-only superuser privileges can view sensitive robot account tokens for repositories they are not authorized to access. This exposure can lead to impersonation of robot accounts, potentially allowing unauthorized actions or access within the affected system. The impact affects confidentiality, integrity, and availability as per the CVSS vector.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory at https://access.redhat.com/security/cve/CVE-2026-18255 for current remediation guidance. Until an official fix is available, restrict assignment of GLOBAL_READONLY_SUPER_USERS privileges to trusted users only to minimize risk.
CVE-2026-18255: Incorrect Authorization in Red Hat Red Hat Quay 3
Description
CVE-2026-18255 is a vulnerability in Red Hat Quay 3 where users configured with GLOBAL_READONLY_SUPER_USERS privileges can view robot account tokens for repositories they do not belong to. This flaw allows an attacker with read-only superuser privileges to impersonate any robot account. The vulnerability has a high severity with a CVSS score of 7.2. No specific affected versions or patch information is provided in the available data.
CVSS v3.1
Score 7.2high
AI-Powered Analysis
Machine-generated threat intelligence
Technical Analysis
This vulnerability in Red Hat Quay 3 involves incorrect authorization that permits users in the GLOBAL_READONLY_SUPER_USERS group to access robot account tokens for repositories outside their membership. This unauthorized access enables impersonation of robot accounts by attackers holding read-only superuser privileges. The CVSS 3.1 score of 7.2 reflects high impact on confidentiality, integrity, and availability. There is no vendor advisory content indicating an available patch or mitigation, and no affected versions are explicitly stated.
Potential Impact
An attacker with read-only superuser privileges can view sensitive robot account tokens for repositories they are not authorized to access. This exposure can lead to impersonation of robot accounts, potentially allowing unauthorized actions or access within the affected system. The impact affects confidentiality, integrity, and availability as per the CVSS vector.
Mitigation Recommendations
Patch status is not yet confirmed — check the vendor advisory at https://access.redhat.com/security/cve/CVE-2026-18255 for current remediation guidance. Until an official fix is available, restrict assignment of GLOBAL_READONLY_SUPER_USERS privileges to trusted users only to minimize risk.
Technical Details
- Data Version
- 5.2
- Assigner Short Name
- redhat
- Date Reserved
- 2026-07-29T16:19:25.998Z
- Cvss Version
- 3.1
- State
- PUBLISHED
- Remediation Level
- null
- Vendor Advisory Urls
- [{"url":"https://access.redhat.com/security/cve/CVE-2026-18255","vendor":"Red Hat"}]
Threat ID: 6a6a48789c2644c7f8e5159d
Added to database: 07/29/2026, 18:37:44 UTC
Last enriched: 07/29/2026, 18:52:04 UTC
Last updated: 07/29/2026, 18:52:04 UTC
Views: 4
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