GHSA-GGFF-9MJ3-7246

Vulnerability from github – Published: 2026-01-21 15:47 – Updated: 2026-01-22 15:52
VLAI?
Summary
mailqueue TYPO3 extension affected by Insecure Deserialization in QueueableFileTransport
Details

Description

The extension extends TYPO3’s FileSpool component, which was vulnerable to Insecure Deserialization prior to TYPO3-CORE-SA-2026-004. Since the related fix is overwritten by the extension, using the extension with a patched TYPO3 core version still allows for Insecure Deserialization, because the affected vulnerable code was extracted from TYPO3 core to the extension.

More information about this vulnerability can be found in the related TYPO3 Core Security Advisory TYPO3-CORE-SA-2026-004.

References

  • TYPO3-EXT-SA-2026-001
  • https://github.com/CPS-IT/mailqueue/commit/fd09aa4e1a751551bae4b228bee814e22f2048db
  • https://github.com/CPS-IT/mailqueue/commit/12a0a35027bb5609917790a94e43bbf117abf733
Severity ?
5.2 (Medium)
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
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{
  "affected": [
    {
      "package": {
        "ecosystem": "Packagist",
        "name": "cpsit/typo3-mailqueue"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "0.4.3"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    },
    {
      "package": {
        "ecosystem": "Packagist",
        "name": "cpsit/typo3-mailqueue"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0.5.0"
            },
            {
              "fixed": "0.5.1"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ]
    }
  ],
  "aliases": [
    "CVE-2026-0895"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-502"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2026-01-21T15:47:44Z",
    "nvd_published_at": "2026-01-20T08:16:01Z",
    "severity": "MODERATE"
  },
  "details": "## Description\n\nThe extension extends TYPO3\u2019s FileSpool component, which was vulnerable to Insecure Deserialization prior to [TYPO3-CORE-SA-2026-004](https://typo3.org/security/advisory/typo3-core-sa-2026-004). Since the related fix is overwritten by the extension, using the extension with a patched TYPO3 core version still allows for Insecure Deserialization, because the affected vulnerable code was extracted from TYPO3 core to the extension.\n\nMore information about this vulnerability can be found in the related TYPO3 Core Security Advisory [TYPO3-CORE-SA-2026-004](https://typo3.org/security/advisory/typo3-core-sa-2026-004).\n\n## References\n\n* [TYPO3-EXT-SA-2026-001](https://typo3.org/security/advisory/typo3-ext-sa-2026-001)\n* https://github.com/CPS-IT/mailqueue/commit/fd09aa4e1a751551bae4b228bee814e22f2048db\n* https://github.com/CPS-IT/mailqueue/commit/12a0a35027bb5609917790a94e43bbf117abf733",
  "id": "GHSA-ggff-9mj3-7246",
  "modified": "2026-01-22T15:52:09Z",
  "published": "2026-01-21T15:47:44Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://github.com/CPS-IT/mailqueue/security/advisories/GHSA-ggff-9mj3-7246"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-0895"
    },
    {
      "type": "WEB",
      "url": "https://github.com/CPS-IT/mailqueue/commit/12a0a35027bb5609917790a94e43bbf117abf733"
    },
    {
      "type": "WEB",
      "url": "https://github.com/CPS-IT/mailqueue/commit/fd09aa4e1a751551bae4b228bee814e22f2048db"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/CPS-IT/mailqueue"
    },
    {
      "type": "WEB",
      "url": "https://typo3.org/security/advisory/typo3-ext-sa-2026-001"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "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",
      "type": "CVSS_V4"
    }
  ],
  "summary": "mailqueue TYPO3 extension affected by Insecure Deserialization in QueueableFileTransport"
}


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  • Seen: The vulnerability was mentioned, discussed, or observed by the user.
  • Confirmed: The vulnerability has been validated from an analyst's perspective.
  • Published Proof of Concept: A public proof of concept is available for this vulnerability.
  • Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
  • Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
  • Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
  • Not confirmed: The user expressed doubt about the validity of the vulnerability.
  • Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.



Detection rules are retrieved from Rulezet.