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Critical

Security advisory

Type: advisorySources: OSVCVE: CVE-2017-7540

rubygem-safemode, as used in Foreman, versions 1.3.2 and earlier are vulnerable to bypassing safe mode limitations via special Ruby syntax. This can lead to deletion of objects for which the user does not have delete permissions or possibly to privilege escalation.

Products
Not specified
Affected versions
Not specified
Fixed versions
Not specified
CVEs
CVE-2017-7540
Confirmed fixed CVEs
Not specified
Updated in this feed
31 Oct 2026, 09:58 UTC · Revision 1

Source evidence

CVE-2017-7540

core-osv · Original source

Published 21 Jul 2017, 22:29 UTC

rubygem-safemode, as used in Foreman, versions 1.3.2 and earlier are vulnerable to bypassing safe mode limitations via special Ruby syntax. This can lead to deletion of objects for which the user does not have delete permissions or possibly to privilege escalation.

osv:CVE-2017-7540
Complete source record
{
  "id": "a39a3d5604667ad53e22971456ddf523f0fab832e8dc238244c6259bdd0309f3",
  "url": "https://osv.dev/vulnerability/CVE-2017-7540",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2017-7540",
    "summary": "rubygem-safemode, as used in Foreman, versions 1.3.2 and earlier are vulnerable to bypassing safe mode limitations via special Ruby syntax. This can lead to deletion of objects for which the user does not have delete permissions or possibly to privilege escalation.",
    "evidence": "osv:CVE-2017-7540",
    "products": [],
    "severity": "critical",
    "structured": {
      "id": "CVE-2017-7540",
      "aliases": [
        "CVE-2017-7540",
        "GHSA-5vx5-9q73-wgp4"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/theforeman/safemode",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "last_affected": "e54f3a709532e19b82d53bf4df3a519e6938fdf7"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:safemode_project:safemode:*:*:*:*:*:ruby:*:*",
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "last_affected": "1.3.2"
                      }
                    ],
                    "source": "CPE_RANGE"
                  }
                ]
              }
            }
          ],
          "versions": [
            "v1.3.2",
            "v1.3.1",
            "v1.3.0",
            "v1.2.5",
            "v1.2.4",
            "v1.2.3",
            "v1.2.2",
            "v1.2.1",
            "v1.0.1",
            "v1.2.0",
            "v1.1.0"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2017-7540.json"
          }
        }
      ],
      "modified": "2026-10-20T10:49:32.841036626Z",
      "provider": "osv",
      "references": [
        "https://github.com/svenfuchs/safemode/pull/23"
      ],
      "provider_metadata": {}
    },
    "related_cves": [
      {
        "value": "CVE-2017-7540",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 380535,
  "published_at": "2017-07-21T22:29:00.33+00:00"
}