CVE-2026-18255
Medium
Elevated severity or exploit probability.
CVSS base
7.2
HIGH
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
EPSS — probability of exploitation (30 days)
0.7%
49.2th percentile
CISA KEV
Not listed
Weakness / dates
CWE-863
Published 2026-07-29 · modified 2026-09-22
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.
References
- https://access.redhat.com/errata/RHSA-2026:63307
- https://access.redhat.com/errata/RHSA-2026:65514
- https://access.redhat.com/errata/RHSA-2026:66084
- https://access.redhat.com/errata/RHSA-2026:66523
- https://access.redhat.com/errata/RHSA-2026:69255
- https://access.redhat.com/errata/RHSA-2026:70267
- https://access.redhat.com/security/cve/CVE-2026-18255
- https://bugzilla.redhat.com/show_bug.cgi?id=2508454