{"id":"CVE-2026-18255","title":"A flaw was found in Quay","summary":"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 …","severity":"high","cvss":7.2,"cvssVector":"CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H","cwe":["CWE-863"],"vendor":"Red Hat","product":"quay/quay-rhel8","affected":["quay/quay-rhel8 (all versions)","quay/quay-rhel8 (all versions)","quay/quay-rhel8 (all versions)","quay/quay-rhel8 (all versions)","quay/quay-rhel9 (all versions)","quay/quay-rhel8 (all versions)"],"patched":["quay 3.15","quay 3.9"],"published":"2026-07-29","updated":"2026-09-22","sourceUpdated":"2026-09-22T18:17:11.327","source":"NVD","sourceUrl":"https://nvd.nist.gov/vuln/detail/CVE-2026-18255","references":[{"url":"https://access.redhat.com/errata/RHSA-2026:63307","label":"secalert@redhat.com"},{"url":"https://access.redhat.com/errata/RHSA-2026:65514","label":"secalert@redhat.com"},{"url":"https://access.redhat.com/errata/RHSA-2026:66084","label":"secalert@redhat.com"},{"url":"https://access.redhat.com/errata/RHSA-2026:66523","label":"secalert@redhat.com"},{"url":"https://access.redhat.com/errata/RHSA-2026:69255","label":"secalert@redhat.com"},{"url":"https://access.redhat.com/errata/RHSA-2026:70267","label":"secalert@redhat.com"},{"url":"https://access.redhat.com/security/cve/CVE-2026-18255","label":"secalert@redhat.com"},{"url":"https://bugzilla.redhat.com/show_bug.cgi?id=2508454","label":"secalert@redhat.com"},{"url":"https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-18255.json"},{"url":"https://www.cve.org/CVERecord?id=CVE-2026-18255"},{"url":"https://nvd.nist.gov/vuln/detail/CVE-2026-18255"}],"tags":["nvd","cve.org","csaf","vex","red-hat"],"ssvc":{"exploitation":"none","automatable":"no","technicalImpact":"total","timestamp":"2026-07-29T18:05:45.459458Z"},"epss":0.0035,"epssPercentile":0.28704,"ingestedAt":"2026-09-08T22:12:31.038Z","slug":"CVE-2026-18255","body":"## Overview\n\nA 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.\n\n## Remediation\n\nRefer to the linked advisories for vendor-supplied fixes and affected version ranges.\n\n## Vendor advisories\n\n- **RHSA-2026:63307** · Red Hat · fixed in: Red Hat Quay 3.15 · released 2026-09-03 · [advisory](https://access.redhat.com/errata/RHSA-2026:63307)\n- **RHSA-2026:65514** · Red Hat · fixed in: Red Hat Quay 3.9 · released 2026-09-08 · [advisory](https://access.redhat.com/errata/RHSA-2026:65514)\n- **Red Hat VEX** · Important · affected: Red Hat Quay 3 · no fix planned: Red Hat Quay 3 · updated 2026-09-10 · [vex](https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-18255.json)\n- **RHSA-2026:66084** · Red Hat · fixed in: Red Hat Quay 3.10 · released 2026-09-09 · [advisory](https://access.redhat.com/errata/RHSA-2026:66084)\n- **RHSA-2026:66523** · Red Hat · fixed in: Red Hat Quay 3.12 · released 2026-09-10 · [advisory](https://access.redhat.com/errata/RHSA-2026:66523)\n- **RHSA-2026:69255** · Red Hat · fixed in: Red Hat Quay 3.16 · released 2026-09-21 · [advisory](https://access.redhat.com/errata/RHSA-2026:69255)\n- **RHSA-2026:70267** · Red Hat · fixed in: Red Hat Quay 3.14 · released 2026-09-22 · [advisory](https://access.redhat.com/errata/RHSA-2026:70267)","depth":"twilight","depthScore":40,"depthScoreParts":{"impact":39.6,"likelihood":0.1,"exploitation":0,"ransomware":0},"changes":[]}