Medium [CVE-2026-74242] Repository notification UUID IDOR in Quay API
This medium-severity Red Hat Linux advisory covers CVE-2026-74242 affecting Red Hat OpenShift Update Service, Red Hat Quay 3.
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Summary
A flaw was found in Red Hat Quay. An administrator of any repository, by knowing or guessing a target notification's Universally Unique Identifier (UUID), can read the notification configuration, including sensitive details like webhook URLs, Slack tokens, and email addresses.
This vulnerability also allows them to trigger test notifications for another repository. This could lead to unauthorized information disclosure and potential misuse of notification services.
Exploitation requires knowledge of a specific 128-bit notification UUID, which limits the likelihood of successful attacks despite the potential for information disclosure. Red Hat severity: Moderate — CVSS 5.3 (CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N).
Weakness: CWE-639. Affected Red Hat products: Red Hat OpenShift Update Service; Red Hat Quay 3.
Red Hat does not currently list a fixing RHSA for this CVE.
Affected versions
No affected-version range was extracted from the source record. The vendor advisory is authoritative — check it before change work.
Official advisory · high-confidence parse· fetched 3 hours ago·verify at source
Fixed versions
No fixed release is recorded yet. That does not prove no patch exists — confirm against the vendor advisory.
Official advisory · high-confidence parse· fetched 3 hours ago·verify at source
Mitigation checklist
- Mitigation for this issue is either not available or the currently available options do not meet the Red Hat Product Security criteria comprising ease of use and deployment, applicability to widespread installation base, or stability.
Official advisory · high-confidence parse· fetched 3 hours ago·verify at source
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