Security advisory

{
  "id": "ebc6a6ba81af48da395f2b6517049769fd30f226dd9c1156d328cf96a2ee12ed",
  "url": "https://osv.dev/vulnerability/CVE-2021-21327",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "CVE-2021-21327",
    "summary": "GLPI is an open-source asset and IT management software package that provides ITIL Service Desk features, licenses tracking and software auditing. In GLPI before version 9.5.4 non-authenticated user can remotely instantiate object of any class existing in the GLPI environment that can be used to carry out malicious attacks, or to start a “POP chain”. As an example of direct impact, this vulnerability affects integrity of the GLPI core platform and third-party plugins runtime misusing classes which implement some sensitive operations in their constructors or destructors. This is fixed in version 9.5.4.",
    "evidence": "osv:CVE-2021-21327",
    "products": [],
    "severity": "high",
    "structured": {
      "id": "CVE-2021-21327",
      "aliases": [
        "CVE-2021-21327",
        "GHSA-qmw7-w2m4-rjwp"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:H/A:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/glpi-project/glpi",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "59a0a0b6101fcd54b00bfc6a61d4e707513c08c9"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:glpi-project:glpi:*:*:*:*:*:*:*:*",
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "fixed": "9.5.4"
                      }
                    ],
                    "source": "CPE_RANGE"
                  },
                  {
                    "range": [
                      {
                        "fixed": "59a0a0b6101fcd54b00bfc6a61d4e707513c08c9"
                      }
                    ],
                    "source": "REFERENCES_TAG",
                    "original_tag": "9.5.4"
                  }
                ]
              }
            }
          ],
          "versions": [
            "9.5.3",
            "9.5.2",
            "9.5.1",
            "9.5.0",
            "9.5.0-rc2",
            "9.5.0-rc1",
            "9.4.1.1",
            "9.4.1",
            "9.4.0",
            "9.4.0-rc2",
            "9.4.0-rc1",
            "9.4.0-beta",
            "9.3-beta",
            "9.1",
            "9.1-RC2",
            "9.1-RC1",
            "0.90",
            "0.90-RC2",
            "0.90-RC1",
            "0.90-beta2",
            "0.90-beta1"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2021-21327.json"
          }
        }
      ],
      "modified": "2026-10-20T10:54:28.243666799Z",
      "provider": "osv",
      "references": [
        "https://github.com/glpi-project/glpi/releases/tag/9.5.4",
        "https://github.com/glpi-project/glpi/security/advisories/GHSA-qmw7-w2m4-rjwp"
      ],
      "provider_metadata": {}
    },
    "related_cves": [
      {
        "value": "CVE-2021-21327",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 385411,
  "published_at": "2021-03-08T17:15:13.197+00:00"
}