{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "extracted_events": [
              {
                "introduced": "0"
              },
              {
                "fixed": "3.5.3"
              }
            ],
            "source": [
              "DESCRIPTION",
              "REFERENCES"
            ]
          },
          "events": [
            {
              "introduced": "0"
            },
            {
              "fixed": "13994c3c174bf5b634080c157a6c305c60aa84cb"
            },
            {
              "fixed": "0fd469102b05b5ebeb5ee39b3f73ff76991ab269"
            }
          ],
          "repo": "https://github.com/papermerge/papermerge-core",
          "type": "GIT"
        }
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "VulnCheck",
    "cwe_ids": [
      "CWE-862"
    ],
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/110xxx/CVE-2026-110623.json"
  },
  "details": "Papermerge Core through 3.5.3 contains a missing authorization vulnerability in the shared nodes API that allows authenticated users to share other users' documents by supplying arbitrary node UUIDs. Attackers can call POST /shared-nodes or PATCH /shared-nodes/access/{node_id} to grant themselves any role, then read, modify, or delete victims' documents and revoke existing shares.",
  "id": "CVE-2026-110623",
  "modified": "2026-10-17T02:30:56.531383095Z",
  "published": "2026-10-14T14:16:59.957Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/110xxx/CVE-2026-110623.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-110623"
    },
    {
      "type": "ADVISORY",
      "url": "https://www.vulncheck.com/advisories/papermerge-core-through-3.5.3-missing-authorization-in-shared-nodes-api"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/papermerge/papermerge-core/issues/1290"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/papermerge/papermerge-core/issues/1291"
    },
    {
      "type": "FIX",
      "url": "https://github.com/papermerge/papermerge-core/commit/0fd469102b05b5ebeb5ee39b3f73ff76991ab269"
    },
    {
      "type": "PACKAGE",
      "url": "https://github.com/papermerge/papermerge-core"
    },
    {
      "type": "ARTICLE",
      "url": "https://github.com/papermerge/papermerge-core/blob/3.5.3/papermerge/core/features/shared_nodes/router.py#L78-L150"
    }
  ],
  "schema_version": "1.9.0",
  "severity": [
    {
      "score": "CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:H/VI:H/VA:H/SC:N/SI:N/SA:N",
      "type": "CVSS_V4"
    }
  ],
  "summary": "Papermerge Core through 3.5.3 Missing Authorization in Shared Nodes API"
}