Papermark through 0.22.0 Missing Authorization in Data Room Viewer Group API

{
  "id": "57f46dab17bc3197f55d25e9f9b79dc40857498b4c75e08de1cabdc8aad77105",
  "url": "https://osv.dev/vulnerability/CVE-2026-111350",
  "method": "structured",
  "payload": {
    "kind": "advisory",
    "title": "Papermark through 0.22.0 Missing Authorization in Data Room Viewer Group API",
    "summary": "Papermark through 0.22.0 contains a missing authorization vulnerability in the data room viewer group API that allows authenticated users to delete other teams' viewer groups and share links. Attackers who know a victim team's data room and group identifiers can send DELETE requests, read group links, or rewrite group document permissions across teams.",
    "evidence": "osv:CVE-2026-111350",
    "products": [],
    "severity": "low",
    "structured": {
      "id": "CVE-2026-111350",
      "aliases": [
        "CVE-2026-111350"
      ],
      "metrics": [
        {
          "type": "CVSS_V4",
          "score": "CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:L/VI:L/VA:L/SC:N/SI:N/SA:N"
        }
      ],
      "affected": [
        {
          "ranges": [
            {
              "repo": "https://github.com/papermark/papermark",
              "type": "GIT",
              "events": [
                {
                  "introduced": "0"
                },
                {
                  "fixed": "b81cf62f390cda112f35538eb09e54b5f728b74a"
                },
                {
                  "fixed": "7fa52b23944823a9e74402fca8e48d644239bc0b"
                }
              ],
              "database_specific": {
                "extracted_events": [
                  {
                    "range": [
                      {
                        "introduced": "0"
                      },
                      {
                        "last_affected": "0.22.0"
                      }
                    ],
                    "source": "AFFECTED_FIELD",
                    "strategy": "StandardRange"
                  },
                  {
                    "range": [
                      {
                        "fixed": "b81cf62f390cda112f35538eb09e54b5f728b74a"
                      }
                    ],
                    "source": "REFERENCES_COMMIT"
                  },
                  {
                    "range": [
                      {
                        "fixed": "7fa52b23944823a9e74402fca8e48d644239bc0b"
                      }
                    ],
                    "source": "REFERENCES_COMMIT"
                  }
                ]
              }
            }
          ],
          "versions": [
            "v0.22.0",
            "v0.21.0",
            "v0.20.0",
            "v0.19.0",
            "v0.18.0",
            "v0.17.0",
            "v0.16.0",
            "v0.15.0",
            "v0.14.0",
            "v0.13.0",
            "v0.12.0",
            "v0.11.0",
            "v0.10.0",
            "v0.9.0",
            "v0.8.0"
          ],
          "database_specific": {
            "source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-111350.json"
          }
        }
      ],
      "modified": "2026-10-28T02:30:52.328335179Z",
      "provider": "osv",
      "references": [
        "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/111xxx/CVE-2026-111350.json",
        "https://hackmd.io/@hieuPenguinnn/papermark-dataroom-group-delete-missing-authz",
        "https://nvd.nist.gov/vuln/detail/CVE-2026-111350",
        "https://www.vulncheck.com/advisories/papermark-through-0.22.0-missing-authorization-in-data-room-viewer-group-api",
        "https://github.com/papermark/papermark/commit/7fa52b23944823a9e74402fca8e48d644239bc0b",
        "https://github.com/papermark/papermark/commit/b81cf62f390cda112f35538eb09e54b5f728b74a",
        "https://github.com/papermark/papermark",
        "https://github.com/papermark/papermark/blob/v0.22.0/pages/api/teams/%5BteamId%5D/datarooms/%5Bid%5D/groups/%5BgroupId%5D/index.ts#L155-L190",
        "https://github.com/papermark/papermark/blob/v0.22.0/pages/api/teams/%5BteamId%5D/datarooms/%5Bid%5D/groups/%5BgroupId%5D/links.ts#L52-L56"
      ],
      "provider_metadata": {
        "cwe_ids": [
          "CWE-862"
        ],
        "cna_assigner": "VulnCheck",
        "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/111xxx/CVE-2026-111350.json"
      }
    },
    "related_cves": [
      {
        "value": "CVE-2026-111350",
        "evidence": "/id"
      }
    ],
    "security_relevant": true,
    "severity_evidence": "/severity/0/score"
  },
  "source_id": "core-osv",
  "document_id": 521323,
  "published_at": "2026-10-15T21:43:40.792+00:00"
}