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Rubygem-katello: improper authorization logic allows resource enumeration

Type: advisorySource: Official CVE List1 source record

A flaw was found in rubygem-katello. The RegistryProxiesController in Katello contains an authorization bypass vulnerability due to an execution fall-through in the registry_authorize filter. While the application identifies unauthorized requests and triggers an error response via the unauthorized method, it fails to halt the execution of the current code path (missing return statement). This failure in the control flow allows the application to proceed into subsequent business logic and database validation filters. Consequently, the application reveals its internal state through differential responses, allowing an unprivileged attacker to enumerate valid Users, Organizations, and Products across the entire instance.

Announced Group revision 1
Original source ↗

CVE-2026-56098

Primary source · Revision 1

Imported from structured advisory data. Source references identify upstream records or fields; verify affected versions and your deployed configuration.

Security context

Source reference: cve:CVE-2026-56098

Red Hat Satellite 6.16 for RHEL 8

Source reference: /containers/cna/affected/0/product

Affected versions
Not stated in this record
Fixed versions
Not stated in this record
Prerequisites
Not stated in this record

Red Hat Satellite 6.16 for RHEL 9

Source reference: /containers/cna/affected/1/product

Affected versions
Not stated in this record
Fixed versions
Not stated in this record
Prerequisites
Not stated in this record

Red Hat Satellite 6.17 for RHEL 9

Source reference: /containers/cna/affected/2/product

Affected versions
Not stated in this record
Fixed versions
Not stated in this record
Prerequisites
Not stated in this record

Red Hat Satellite 6.18 for RHEL 9

Source reference: /containers/cna/affected/3/product

Affected versions
Not stated in this record
Fixed versions
Not stated in this record
Prerequisites
Not stated in this record

Red Hat Satellite 6.19 for RHEL 9

Source reference: /containers/cna/affected/4/product

Affected versions
Not stated in this record
Fixed versions
Not stated in this record
Prerequisites
Not stated in this record

Red Hat Satellite 6

Source reference: /containers/cna/affected/5/product

Affected versions
Not stated in this record
Fixed versions
Not stated in this record
Prerequisites
Not stated in this record

Red Hat Satellite 6

Source reference: /containers/cna/affected/6/product

Affected versions
Not stated in this record
Fixed versions
Not stated in this record
Prerequisites
Not stated in this record

Structured affected-version data

Original package identities and version rules from this source.

[
  {
    "cpes": [
      "cpe:/a:redhat:satellite:6.16::el8",
      "cpe:/a:redhat:satellite:6.16::el9",
      "cpe:/a:redhat:satellite_capsule:6.16::el8",
      "cpe:/a:redhat:satellite_capsule:6.16::el9",
      "cpe:/a:redhat:satellite_utils:6.16::el8",
      "cpe:/a:redhat:satellite_utils:6.16::el9"
    ],
    "vendor": "Red Hat",
    "product": "Red Hat Satellite 6.16 for RHEL 8",
    "versions": [
      {
        "status": "unaffected",
        "version": "0:4.14.0.23-1.el8sat",
        "lessThan": "*",
        "versionType": "rpm"
      }
    ],
    "packageName": "rubygem-katello",
    "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
    "defaultStatus": "affected"
  },
  {
    "cpes": [
      "cpe:/a:redhat:satellite:6.16::el8",
      "cpe:/a:redhat:satellite:6.16::el9",
      "cpe:/a:redhat:satellite_capsule:6.16::el8",
      "cpe:/a:redhat:satellite_capsule:6.16::el9",
      "cpe:/a:redhat:satellite_utils:6.16::el8",
      "cpe:/a:redhat:satellite_utils:6.16::el9"
    ],
    "vendor": "Red Hat",
    "product": "Red Hat Satellite 6.16 for RHEL 9",
    "versions": [
      {
        "status": "unaffected",
        "version": "0:4.14.0.23-1.el9sat",
        "lessThan": "*",
        "versionType": "rpm"
      }
    ],
    "packageName": "rubygem-katello",
    "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
    "defaultStatus": "affected"
  },
  {
    "cpes": [
      "cpe:/a:redhat:satellite:6.17::el9",
      "cpe:/a:redhat:satellite_capsule:6.17::el9",
      "cpe:/a:redhat:satellite_utils:6.17::el9"
    ],
    "vendor": "Red Hat",
    "product": "Red Hat Satellite 6.17 for RHEL 9",
    "versions": [
      {
        "status": "unaffected",
        "version": "0:4.16.0.20-1.el9sat",
        "lessThan": "*",
        "versionType": "rpm"
      }
    ],
    "packageName": "rubygem-katello",
    "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
    "defaultStatus": "affected"
  },
  {
    "cpes": [
      "cpe:/a:redhat:satellite:6.18::el9",
      "cpe:/a:redhat:satellite_capsule:6.18::el9",
      "cpe:/a:redhat:satellite_utils:6.18::el9"
    ],
    "vendor": "Red Hat",
    "product": "Red Hat Satellite 6.18 for RHEL 9",
    "versions": [
      {
        "status": "unaffected",
        "version": "0:4.18.0.24-1.el9sat",
        "lessThan": "*",
        "versionType": "rpm"
      }
    ],
    "packageName": "rubygem-katello",
    "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
    "defaultStatus": "affected"
  },
  {
    "cpes": [
      "cpe:/a:redhat:satellite:6.19::el9",
      "cpe:/a:redhat:satellite_capsule:6.19::el9",
      "cpe:/a:redhat:satellite_utils:6.19::el9"
    ],
    "vendor": "Red Hat",
    "product": "Red Hat Satellite 6.19 for RHEL 9",
    "versions": [
      {
        "status": "unaffected",
        "version": "0:4.20.0.11-1.el9sat",
        "lessThan": "*",
        "versionType": "rpm"
      }
    ],
    "packageName": "rubygem-katello",
    "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
    "defaultStatus": "affected"
  },
  {
    "cpes": [
      "cpe:/a:redhat:satellite:6"
    ],
    "vendor": "Red Hat",
    "product": "Red Hat Satellite 6",
    "packageName": "katello",
    "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
    "defaultStatus": "affected"
  },
  {
    "cpes": [
      "cpe:/a:redhat:satellite:6"
    ],
    "vendor": "Red Hat",
    "product": "Red Hat Satellite 6",
    "packageName": "satellite:el8/rubygem-katello",
    "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
    "defaultStatus": "affected"
  }
]
Related CVEs
CVE-2026-56098

Source reference: /cveMetadata/cveId

Publisher severity

medium

Source reference: /containers/cna/metrics

Event
#11759 · Revision 1
Added to Heist Feed
Publisher date
Read the original announcement

Revision history

  1. CVE-2026-56098 · Revision 1Source updated