{"dataType": "CVE_RECORD", "dataVersion": "5.2", "cveMetadata": {"cveId": "CVE-2026-45687", "assignerOrgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "state": "PUBLISHED", "assignerShortName": "GitHub_M", "dateReserved": "2026-05-13T04:38:01.164Z", "datePublished": "2026-06-24T20:55:25.918Z", "dateUpdated": "2026-06-24T20:55:25.918Z"}, "containers": {"cna": {"title": "Rocket.Chat: Authenticated Arbitrary Data Export Theft via Mass Assignment in sendFileMessage", "problemTypes": [{"descriptions": [{"cweId": "CWE-915", "lang": "en", "description": "CWE-915: Improperly Controlled Modification of Dynamically-Determined Object Attributes", "type": "CWE"}]}], "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"}}], "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"}], "affected": [{"vendor": "RocketChat", "product": "Rocket.Chat", "versions": [{"version": ">= 8.5.0-rc.0, < 8.5.0", "status": "affected"}, {"version": ">= 8.4.0-rc.0, < 8.4.1", "status": "affected"}, {"version": ">= 8.3.0-rc.0, < 8.3.3", "status": "affected"}, {"version": ">= 8.2.0-rc.0, < 8.2.3", "status": "affected"}, {"version": ">= 8.1.0-rc.0, < 8.1.4", "status": "affected"}, {"version": ">= 8.0.0-rc.0, < 8.0.5", "status": "affected"}, {"version": ">= 7.11.0-rc.0, < 7.13.7", "status": "affected"}, {"version": "< 7.10.11", "status": "affected"}]}], "providerMetadata": {"orgId": "a0819718-46f1-4df5-94e2-005712e83aaa", "shortName": "GitHub_M", "dateUpdated": "2026-06-24T20:55:25.918Z"}, "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's 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."}], "source": {"advisory": "GHSA-fhc2-x8cp-c5ch", "discovery": "UNKNOWN"}}}}

{}

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{}