Vulnerability · Published Jul 29, 2026 · Assigned by redhat
CVE-2026-18255Quay: quay: global read-only superuser can view robot account tokens
High 7.2
In plain English
A high-severity incorrect authorization in Red Hat Quay 3.10 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 0.8% (higher than 56% of all known vulnerabilities).
Severity (CVSS 3.1)7.2High
Exploit odds (30 days)0.8%top 44.2% of all CVEs
Exploited in the wildNo reportsCISA SSVC: none
Attack toolingNoneno public tooling known
Official 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.
Affected products (as reported)
| Vendor | Product | Versions |
|---|---|---|
| Red Hat | Red Hat Quay 3.10 | see references |
| Red Hat | Red Hat Quay 3.12 | see references |
| Red Hat | Red Hat Quay 3.14 | see references |
| Red Hat | Red Hat Quay 3.15 | see references |
| Red Hat | Red Hat Quay 3.16 | see references |
| Red Hat | Red Hat Quay 3.17 | see references |
| Red Hat | Red Hat Quay 3.18 | see references |
| Red Hat | Red Hat Quay 3.9 | see references |
Weakness: CWE-863 · Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
References
- RHSA-2026:63307 vendor-advisory, x_refsource_REDHAT
- RHSA-2026:65514 vendor-advisory, x_refsource_REDHAT
- RHSA-2026:66084 vendor-advisory, x_refsource_REDHAT
- RHSA-2026:66523 vendor-advisory, x_refsource_REDHAT
- RHSA-2026:69255 vendor-advisory, x_refsource_REDHAT
- RHSA-2026:70267 vendor-advisory, x_refsource_REDHAT
- RHSA-2026:74511 vendor-advisory, x_refsource_REDHAT
- RHSA-2026:81110 vendor-advisory, x_refsource_REDHAT
- https://access.redhat.com/security/cve/CVE-2026-18255 vdb-entry, x_refsource_REDHAT
- RHBZ#2508454 issue-tracking, x_refsource_REDHAT