{
  "containers": {
    "cna": {
      "affected": [
        {
          "product": "Rocket.Chat",
          "vendor": "RocketChat",
          "versions": [
            {
              "status": "affected",
              "version": "\u003e= 8.5.0-rc.0, \u003c 8.5.0"
            },
            {
              "status": "affected",
              "version": "\u003e= 8.4.0-rc.0, \u003c 8.4.1"
            },
            {
              "status": "affected",
              "version": "\u003e= 8.3.0-rc.0, \u003c 8.3.3"
            },
            {
              "status": "affected",
              "version": "\u003e= 8.2.0-rc.0, \u003c 8.2.3"
            },
            {
              "status": "affected",
              "version": "\u003e= 8.1.0-rc.0, \u003c 8.1.4"
            },
            {
              "status": "affected",
              "version": "\u003e= 8.0.0-rc.0, \u003c 8.0.5"
            },
            {
              "status": "affected",
              "version": "\u003e= 7.11.0-rc.0, \u003c 7.13.7"
            },
            {
              "status": "affected",
              "version": "\u003c 7.10.11"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "Rocket.Chat is an open-source, secure, fully customizable communications platform. Prior to 8.5.0, 8.4.1, 8.3.3, 8.2.3, 8.1.4, 8.0.5, 7.13.7, and 7.10.11, Rocket.Chat\u0027s sendFileMessage DDP method passes the entire attacker-supplied file object into Uploads.updateFileComplete, which merges it directly into a MongoDB $set update via Object.assign. There is no allow-list of writable fields. An attacker can therefore rewrite any column on their own upload record, notably store and the store-specific path fields. This vulnerability is fixed in 8.5.0, 8.4.1, 8.3.3, 8.2.3, 8.1.4, 8.0.5, 7.13.7, and 7.10.11."
        }
      ],
      "metrics": [
        {
          "cvssV3_1": {
            "attackComplexity": "LOW",
            "attackVector": "NETWORK",
            "availabilityImpact": "NONE",
            "baseScore": 8.5,
            "baseSeverity": "HIGH",
            "confidentialityImpact": "HIGH",
            "integrityImpact": "LOW",
            "privilegesRequired": "LOW",
            "scope": "CHANGED",
            "userInteraction": "NONE",
            "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:L/A:N",
            "version": "3.1"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "cweId": "CWE-915",
              "description": "CWE-915: Improperly Controlled Modification of Dynamically-Determined Object Attributes",
              "lang": "en",
              "type": "CWE"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-06-24T20:55:25.918Z",
        "orgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
        "shortName": "GitHub_M"
      },
      "references": [
        {
          "name": "https://github.com/RocketChat/Rocket.Chat/security/advisories/GHSA-fhc2-x8cp-c5ch",
          "tags": [
            "x_refsource_CONFIRM"
          ],
          "url": "https://github.com/RocketChat/Rocket.Chat/security/advisories/GHSA-fhc2-x8cp-c5ch"
        }
      ],
      "source": {
        "advisory": "GHSA-fhc2-x8cp-c5ch",
        "discovery": "UNKNOWN"
      },
      "title": "Rocket.Chat: Authenticated Arbitrary Data Export Theft via Mass Assignment in sendFileMessage"
    }
  },
  "cveMetadata": {
    "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa",
    "assignerShortName": "GitHub_M",
    "cveId": "CVE-2026-45687",
    "datePublished": "2026-06-24T20:55:25.918Z",
    "dateReserved": "2026-05-13T04:38:01.164Z",
    "dateUpdated": "2026-06-24T20:55:25.918Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2",
  "vulnerability-lookup:meta": {
    "epss": {
      "cve": "CVE-2026-45687",
      "date": "2026-06-25",
      "epss": "0.00205",
      "percentile": "0.10597"
    }
  }
}