{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-52850",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-09-29T03:08:11.300076Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-09-29T03:08:21.988Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "docmost",
          "vendor": "docmost",
          "versions": [
            {
              "status": "affected",
              "version": "\u003c 0.90.1"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "Docmost is open-source collaborative wiki and documentation software. Prior to 0.90.1, an authenticated workspace member who does not belong to a private space can call the transclusion / sync-block lookup API with a known sourcePageId and transclusionId pair because the lookup does not enforce private space membership before resolving the source page. The API can return confidential sync-block content and source page metadata even though the normal page APIs deny access to the same page. This issue is fixed in version 0.90.1."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 4.3,
            "baseSeverity": "MEDIUM",
            "confidentialityImpact": "LOW",
            "integrityImpact": "NONE",
            "privilegesRequired": "LOW",
            "scope": "UNCHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-639",
              "description": "CWE-639: Authorization Bypass Through User-Controlled Key",
              "lang": "en",
              "type": "CWE"
            }
          ]
        },
        {
          "descriptions": [
            {
              "cweId": "CWE-862",
              "description": "CWE-862: Missing Authorization",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-09-24T18:30:06.702Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
        {
          "name": "https://github.com/docmost/docmost/security/advisories/GHSA-5vhf-cgf2-c9cq",
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/docmost/docmost/security/advisories/GHSA-5vhf-cgf2-c9cq"
        },
        {
          "name": "https://github.com/docmost/docmost/commit/830b5b4d458a1302f42c8b68bff9ff559f6eb342",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/docmost/docmost/commit/830b5b4d458a1302f42c8b68bff9ff559f6eb342"
        },
        {
          "name": "https://github.com/docmost/docmost/releases/tag/v0.90.1",
          "tags": [
            "x_refsource_MISC"
          ],
          "url": "https://github.com/docmost/docmost/releases/tag/v0.90.1"
        }
      ],
      "source": {
        "advisory": "GHSA-5vhf-cgf2-c9cq",
        "discovery": "UNKNOWN"
      },
      "title": "Docmost: Broken access control in transclusion lookup API leaks sync-block content across private spaces"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2026-52850",
    "datePublished": "2026-09-24T18:30:06.702Z",
    "dateReserved": "2026-06-08T18:41:27.724Z",
    "dateUpdated": "2026-09-29T03:08:21.988Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "vulnrichment": {
      "containers": "{\"adp\": [{\"title\": \"CISA ADP Vulnrichment\", \"metrics\": [{\"other\": {\"type\": \"ssvc\", \"content\": {\"id\": \"CVE-2026-52850\", \"role\": \"CISA Coordinator\", \"options\": [{\"Exploitation\": \"none\"}, {\"Automatable\": \"no\"}, {\"Technical Impact\": \"partial\"}], \"version\": \"2.0.3\", \"timestamp\": \"2026-09-29T03:08:11.300076Z\"}}}], \"providerMetadata\": {\"orgId\": \"134c704f-9b21-4f2e-91b3-4a467353bcc0\", \"shortName\": \"CISA-ADP\", \"dateUpdated\": \"2026-09-29T03:08:17.933Z\"}}], \"cna\": {\"title\": \"Docmost: Broken access control in transclusion lookup API leaks sync-block content across private spaces\", \"source\": {\"advisory\": \"GHSA-5vhf-cgf2-c9cq\", \"discovery\": \"UNKNOWN\"}, \"metrics\": [{\"cvssV3_1\": {\"scope\": \"UNCHANGED\", \"version\": \"3.1\", \"baseScore\": 4.3, \"attackVector\": \"NETWORK\", \"baseSeverity\": \"MEDIUM\", \"vectorString\": \"CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N\", \"integrityImpact\": \"NONE\", \"userInteraction\": \"NONE\", \"attackComplexity\": \"LOW\", \"availabilityImpact\": \"NONE\", \"privilegesRequired\": \"LOW\", \"confidentialityImpact\": \"LOW\"}}], \"affected\": [{\"vendor\": \"docmost\", \"product\": \"docmost\", \"versions\": [{\"status\": \"affected\", \"version\": \"\u003c 0.90.1\"}]}], \"references\": [{\"url\": \"https://github.com/docmost/docmost/security/advisories/GHSA-5vhf-cgf2-c9cq\", \"name\": \"https://github.com/docmost/docmost/security/advisories/GHSA-5vhf-cgf2-c9cq\", \"tags\": [\"x_refsource_CONFIRM\"]}, {\"url\": \"https://github.com/docmost/docmost/commit/830b5b4d458a1302f42c8b68bff9ff559f6eb342\", \"name\": \"https://github.com/docmost/docmost/commit/830b5b4d458a1302f42c8b68bff9ff559f6eb342\", \"tags\": [\"x_refsource_MISC\"]}, {\"url\": \"https://github.com/docmost/docmost/releases/tag/v0.90.1\", \"name\": \"https://github.com/docmost/docmost/releases/tag/v0.90.1\", \"tags\": [\"x_refsource_MISC\"]}], \"descriptions\": [{\"lang\": \"en\", \"value\": \"Docmost is open-source collaborative wiki and documentation software. Prior to 0.90.1, an authenticated workspace member who does not belong to a private space can call the transclusion / sync-block lookup API with a known sourcePageId and transclusionId pair because the lookup does not enforce private space membership before resolving the source page. The API can return confidential sync-block content and source page metadata even though the normal page APIs deny access to the same page. This issue is fixed in version 0.90.1.\"}], \"problemTypes\": [{\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-639\", \"description\": \"CWE-639: Authorization Bypass Through User-Controlled Key\"}]}, {\"descriptions\": [{\"lang\": \"en\", \"type\": \"CWE\", \"cweId\": \"CWE-862\", \"description\": \"CWE-862: Missing Authorization\"}]}], \"providerMetadata\": {\"orgId\": \"a0819718-46f1-4df5-94e2-005712e83aaa\", \"shortName\": \"GitHub_M\", \"dateUpdated\": \"2026-09-24T18:30:06.702Z\"}}}",
      "cveMetadata": "{\"cveId\": \"CVE-2026-52850\", \"state\": \"PUBLISHED\", \"dateUpdated\": \"2026-09-29T03:08:21.988Z\", \"dateReserved\": \"2026-06-08T18:41:27.724Z\", \"assignerOrgId\": \"a0819718-46f1-4df5-94e2-005712e83aaa\", \"datePublished\": \"2026-09-24T18:30:06.702Z\", \"assignerShortName\": \"GitHub_M\"}",
      "dataType": "CVE_RECORD",
      "dataVersion": "5.2"
    }
  }
}