CVE-2026-109195
Received Received - Intake

Information Disclosure in Quay Container Registry

Publication date: 2026-10-12

Last updated on: 2026-10-12

Assigner: redhat-SADP

Description
A flaw was found in Quay. An authenticated attacker can access repository auto-prune configurations from other namespaces, leading to unauthorized information disclosure. This issue occurs because the application does not properly enforce namespace scoping when retrieving policy details by repository name and policy identifier. To exploit the vulnerability, the attacker must manage a repository sharing the target's name and know the target policy's unique identifier.

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Meta Information

Published
2026-10-12
Last Modified
2026-10-12
Generated
2026-10-12
AI Q&A
2026-10-12
EPSS Evaluated
N/A
NVD
CVE-2026-109195
EUVD
EUVD-2026-97499

Affected Vendors & Products

Showing 1 associated CPE
Vendor Product Version / Range
Red Hat Red Hat Quay 3 *

Helpful Resources

Exploitability

CWE
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KEV
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CWE ID Description
CWE-639 The system's authorization functionality does not prevent one user from gaining access to another user's data or record by modifying the key value identifying the data.

Attack-Flow Graph

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Executive Summary

CVE-2026-109195 is an Insecure Direct Object Reference (IDOR) flaw in Red Hat Quay. It allows an authenticated attacker to access repository auto-prune configurations from other namespaces by exploiting insufficient namespace scoping in the API endpoint. The attacker must manage a repository with the same name as the target and know the target policy's unique identifier.

Detection Guidance

To detect this vulnerability, inspect Quay API logs for unauthorized access attempts to the auto-prune policy endpoint (/api/v1/repository/<namespace>/<repository>/autoprunepolicy/<policy_uuid>). Look for requests with mismatched namespace and repository names. Check if non-admin users are accessing policies outside their namespace.

Impact Analysis

This vulnerability allows unauthorized read-only access to low-sensitivity auto-prune policy details such as prune method, value, and tag pattern. It does not expose container images, registry credentials, or allow modification/deletion of policies. Exploitation requires specific prerequisites, making it difficult to leverage.

Mitigation Strategies

Apply available patches from Red Hat if available. Monitor API access logs for suspicious activity. Restrict repository naming conventions to avoid conflicts. Ensure namespace scoping is enforced in all API endpoints. Consider upgrading to a supported Quay version if mitigation options are unavailable.

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