ApostropheCMS: Import archives can exhaust server storage and deny service

{
  "id": "df6925ae501b5aead9ea0374af87865d74194d0ac63fd14fb97bf4efac4e1565",
  "url": "https://osv.dev/vulnerability/GHSA-9g7p-m758-rp72",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "ApostropheCMS: Import archives can exhaust server storage and deny service",
    "summary": "## Review scope and evidence limits Package: @apostrophecms/import-export, version 3.7.0. Release tag reviewed: @apostrophecms/import-export@3.7.0, commit 9500b8b0e1d630d5e07fbb5fd2c25ed0943845ce (September 30, 2026). Current main reviewed: 5ce3732be0ebdebb4db0f8ef160c81e8671157e6. The importer, gzip extractor, import permission gate, and core permission implementation have no differences between that release tag and the reviewed main. This follow-up is a static remediation review. We have not repeated the original end-to-end reproductions against the latest release or tested a deployed site. Current exploitability and impact therefore still require maintainer validation; the observations below establish that the reported security checks remain absent in public source. The original emailed PDF contains the original reproduction material. Please refer to that existing private attachment. ## Import archive extraction lacks resource quotas and failure cleanup The current gzip extractor handles destination write errors and waits for write completion; those parts of the original report should no longer be treated as unchanged. The import routes also now require a logged-in user before big-upload processing, as covered by GHSA-86wm-68pq-5jwq. However, extract() still writes expanded archive entries without per-entry, aggregate decompressed-byte, or entry-count quotas. Archive parsing still precedes document-type authorization. If extraction or parsing fails, import() notifies and r",
    "evidence": "osv:GHSA-9g7p-m758-rp72",
    "products": [
      {
        "name": {
          "value": "@apostrophecms/import-export",
          "evidence": "/affected/0/package/name"
        },
        "prerequisites": [],
        "fixed_versions": [
          {
            "value": "3.7.1",
            "evidence": "/affected/0/ranges"
          }
        ],
        "affected_versions": []
      }
    ],
    "severity": "medium",
    "structured": {
      "id": "GHSA-9g7p-m758-rp72",
      "aliases": [
        "CVE-2026-112955",
        "GHSA-9g7p-m758-rp72"
      ],
      "metrics": [
        {
          "type": "CVSS_V3",
          "score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "type": "SEMVER",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "3.7.1"
                }
              ]
            }
          ],
          "package": {
            "name": "@apostrophecms/import-export",
            "purl": "pkg:npm/%40apostrophecms/import-export",
            "ecosystem": "npm"
          },
          "database_specific": {
            "source": "https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/10/GHSA-9g7p-m758-rp72/GHSA-9g7p-m758-rp72.json"
          }
        }
      ],
      "modified": "2026-10-21T17:15:08.637172262Z",
      "provider": "osv",
      "references": [
        "https://github.com/apostrophecms/apostrophe/security/advisories/GHSA-9g7p-m758-rp72",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-112955",
        "https://github.com/apostrophecms/apostrophe/commit/06e4b377f3c360f9e89c32dccd7e505ad5ddf498",
        "https://github.com/apostrophecms/apostrophe/commit/40b989b1a9dd23d30029b8ce7668634265cfe5ea",
        "https://github.com/apostrophecms/apostrophe",
        "https://github.com/apostrophecms/apostrophe/releases/tag/@apostrophecms/import-export@3.7.1"
      ],
      "provider_metadata": {
        "cwe_ids": [
          "CWE-400"
        ],
        "severity": "MODERATE",
        "github_reviewed": true,
        "nvd_published_at": "2026-10-20T16:17:06Z",
        "github_reviewed_at": "2026-10-21T16:57:36Z"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2026-112955",
        "evidence": "/aliases"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 397036,
  "published_at": "2026-10-21T16:57:36+00:00"
}