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CVE-2026-18255 (GCVE-0-2026-18255)

Vulnerability from cvelistv5 – Published: 2026-07-29 16:34 – Updated: 2026-09-09 16:25
VLAI
Title
Quay: quay: global read-only superuser can view robot account tokens
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 account.
Severity
7.2 (High)
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:H/I:H/A:H
SSVC
Exploitation: none Automatable: no Technical Impact: total
CISA Coordinator · CISA-ADP (v2.0.3)
Decision recorded 2026-07-29 18:05 UTC
CWE
  • CWE-863 - Incorrect Authorization
Assigner
References
URL Tags
https://access.redhat.com/errata/RHSA-2026:63307 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:65514 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/errata/RHSA-2026:66084 vendor-advisoryx_refsource_REDHAT
https://access.redhat.com/security/cve/CVE-2026-18255 vdb-entryx_refsource_REDHAT
https://bugzilla.redhat.com/show_bug.cgi?id=2508454 issue-trackingx_refsource_REDHAT
Impacted products
Vendor Product Version CPE status
Red Hat Red Hat Quay 3.10 Unaffected: 1788561841 , < * (rpm)
    cpe:/a:redhat:quay:3.10::el8
Create a notification for this product.
Red Hat Red Hat Quay 3.15 Unaffected: 1788191755 , < * (rpm)
    cpe:/a:redhat:quay:3.15::el8
Create a notification for this product.
Red Hat Red Hat Quay 3.9 Unaffected: 1788595574 , < * (rpm)
    cpe:/a:redhat:quay:3.9::el8
Create a notification for this product.
Red Hat Red Hat Quay 3     cpe:/a:redhat:quay:3
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Date Public
2026-07-21 14:34
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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.

Sightings

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Nomenclature

  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.


Detection rules are retrieved from Rulezet.