Vulnerability · Published Aug 14, 2026 · Assigned by redhat

CVE-2026-74242Quay: repository notification uuid idor in quay api

Medium 5.3

In plain English

A medium-severity authorization bypass via user-controlled key in Red Hat OpenShift Update Service from Red Hat. There are no confirmed reports of exploitation so far. The chance it is exploited in the next 30 days is estimated at 0.3% (higher than 27% of all known vulnerabilities).

Severity (CVSS 3.1)5.3Medium

Exploit odds (30 days)0.3%top 73.1% of all CVEs

Exploited in the wildNo reportsCISA SSVC: none

Attack toolingNoneno public tooling known

Official description

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.

Affected products (as reported)

Vendor	Product	Versions
Red Hat	Red Hat OpenShift Update Service	see references
Red Hat	Red Hat Quay 3	see references
Red Hat	Red Hat Quay 3	see references

Weakness: CWE-639 · Vector: CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:H/I:N/A:N

References

https://access.redhat.com/security/cve/CVE-2026-74242 vdb-entry, x_refsource_REDHAT
RHBZ#2516140 issue-tracking, x_refsource_REDHAT