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Rubygem-hammer_cli: command injection via insecure editor invocation

Type: advisorySource: Official CVE List1 source record

A flaw was found in rubygem-hammer_cli. A command injection vulnerability exists in Hammer CLI and the Railties (Ruby on Rails) component distributed with Satellite due to the insecure interpolation of the $EDITOR environment variable into the Ruby system() method. By passing a single interpolated string to system(), the application invokes a system shell (/bin/sh) that interprets shell metacharacters (e.g., ;, |, &).

Announced Source revision 1
Original source ↗

CVE-2026-12545

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-2026-12545

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

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": "0:3.12.0-2.el8sat",
        "lessThan": "*",
        "versionType": "rpm"
      }
    ],
    "packageName": "rubygem-hammer_cli",
    "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": "0:3.12.0-2.el9sat",
        "lessThan": "*",
        "versionType": "rpm"
      }
    ],
    "packageName": "rubygem-hammer_cli",
    "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": "0:3.14.0-2.el9sat",
        "lessThan": "*",
        "versionType": "rpm"
      }
    ],
    "packageName": "rubygem-hammer_cli",
    "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": "0:3.16.0-2.el9sat",
        "lessThan": "*",
        "versionType": "rpm"
      }
    ],
    "packageName": "rubygem-hammer_cli",
    "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": "0:3.18.0-2.el9sat",
        "lessThan": "*",
        "versionType": "rpm"
      }
    ],
    "packageName": "rubygem-hammer_cli",
    "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-utils:el8/rubygem-hammer_cli",
    "collectionURL": "https://access.redhat.com/downloads/content/package-browser/",
    "defaultStatus": "affected"
  }
]
Related CVEs
CVE-2026-12545

Source reference: /cveMetadata/cveId

Publisher severity

medium

Source reference: /containers/cna/metrics

Event
#11757 · Revision 1
Added to Heist Feed
Publisher date
Read the original announcement