Insecure Deserialization in extension "Mailqueue" (mailqueue)

{
  "id": "ce41fd1602cc13cbb28d7534d7950b3d70157da62a1a59ddfbb8dd3e076f0316",
  "url": "https://osv.dev/vulnerability/CVE-2026-1323",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "Insecure Deserialization in extension \"Mailqueue\" (mailqueue)",
    "summary": "The extension fails to properly define allowed classes used when deserializing transport failure metadata. An attacker may exploit this to execute untrusted serialized code. Note that an active exploit requires write access to the directory configured at $GLOBALS['TYPO3_CONF_VARS']['MAIL']['transport_spool_filepath'].",
    "evidence": "osv:CVE-2026-1323",
    "products": [],
    "severity": "medium",
    "structured": {
      "id": "CVE-2026-1323",
      "aliases": [
        "CVE-2026-1323",
        "GHSA-2pm6-9fhx-vvg3"
      ],
      "metrics": [
        {
          "type": "CVSS_V4",
          "score": "CVSS:4.0/AV:L/AC:L/AT:P/PR:L/UI:N/VC:N/VI:L/VA:N/SC:H/SI:H/SA:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/cps-it/mailqueue",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "c5d3b2f80a4e6d0d535b7fc8216373374adfcd46"
                },
                {
                  "introduced": "81eb05b720512f78953dcedbd5a226addb9c8701"
                },
                {
                  "fixed": "f0bfebe6747fdd981ac73ac9c8e80adda08be41d"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "cpe": "cpe:2.3:a:cps-it:mailqueue:*:*:*:*:*:typo3:*:*",
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "fixed": "0.4.5"
                      }
                    ],
                    "source": "CPE_RANGE"
                  },
                  {
                    "cpe": "cpe:2.3:a:cps-it:mailqueue:*:*:*:*:*:typo3:*:*",
                    "range": [
                      {
                        "introduced": "0.5.0"
                      },
                      {
                        "fixed": "0.5.2"
                      }
                    ],
                    "source": "CPE_RANGE"
                  }
                ]
              }
            }
          ],
          "versions": [
            "0.4.4",
            "0.4.3",
            "0.5.1",
            "0.4.2",
            "0.5.0",
            "0.4.1",
            "0.4.0",
            "0.3.2",
            "0.3.1",
            "0.3.0",
            "0.2.1",
            "0.2.0",
            "0.1.3",
            "0.1.2",
            "0.1.1",
            "0.1.0"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-1323.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:29.154593749Z",
      "provider": "osv",
      "references": [
        "https://packagist.org/",
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/1xxx/CVE-2026-1323.json",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-1323",
        "https://typo3.org/security/advisory/typo3-ext-sa-2026-005",
        "https://github.com/CPS-IT/mailqueue"
      ],
      "provider_metadata": {
        "cwe_ids": [
          "CWE-502"
        ],
        "cna_assigner": "TYPO3",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/1xxx/CVE-2026-1323.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2026-1323",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 495953,
  "published_at": "2026-03-17T08:33:05.16+00:00"
}