CVE-2026-45687

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.

CVSS v3 8.5 HIGH

8.5^/10

CVSS v3 : HIGH

Vector :

Exploitability : 3.1 / Impact : 4.7

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact LOW

Availability Impact NONE

Scope CHANGED

References

Link	Resource
https://github.com/RocketChat/Rocket.Chat/security/advisories/GHSA-fhc2-x8cp-c5ch

Configurations

No configuration.

History

25 Oct 2026, 22:10

Type	Values Removed	Values Added
Summary		(es) Rocket.Chat es una plataforma de comunicaciones de código abierto, segura y totalmente personalizable. Antes de las versiones 8.5.0, 8.4.1, 8.3.3, 8.2.3, 8.1.4, 8.0.5, 7.13.7 y 7.10.11, el método DDP sendFileMessage de Rocket.Chat pasa el objeto de archivo completo proporcionado por el atacante a Uploads.updateFileComplete, que lo fusiona directamente en una actualización $set de MongoDB a través de Object.assign. No existe una lista de permitidos de campos escribibles. Un atacante puede, por lo tanto, reescribir cualquier columna en su propio registro de carga, notablemente los campos ’store’ y los campos de ruta específicos de ’store’. Esta vulnerabilidad se corrige en las versiones 8.5.0, 8.4.1, 8.3.3, 8.2.3, 8.1.4, 8.0.5, 7.13.7 y 7.10.11.

Information

Published : 2026-06-24 21:16

Updated : 2026-10-25 22:10

NVD link : CVE-2026-45687

Mitre link : CVE-2026-45687

CVE.ORG link : CVE-2026-45687

JSON object : View

Products Affected

No product.

CWE

CWE-915

Improperly Controlled Modification of Dynamically-Determined Object Attributes

{"id": "CVE-2026-45687", "cveTags": [], "metrics": {"ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-45687", "role": "CISA Coordinator", "options": [{"exploitation": "none"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "version": "2.0.3", "timestamp": "2026-06-26T17:51:10.359261Z"}}], "cvssMetricV31": [{"type": "Secondary", "source": "security-advisories@github.com", "cvssData": {"scope": "CHANGED", "version": "3.1", "baseScore": 8.5, "attackVector": "NETWORK", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:L/A:N", "integrityImpact": "LOW", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "NONE", "privilegesRequired": "LOW", "confidentialityImpact": "HIGH"}, "impactScore": 4.7, "exploitabilityScore": 3.1}]}, "affected": [{"source": "security-advisories@github.com", "affectedData": [{"vendor": "RocketChat", "product": "Rocket.Chat", "versions": [{"status": "affected", "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"}]}]}], "published": "2026-06-24T21:16:53.720", "references": [{"url": "https://github.com/RocketChat/Rocket.Chat/security/advisories/GHSA-fhc2-x8cp-c5ch", "source": "security-advisories@github.com"}], "vulnStatus": "Deferred", "weaknesses": [{"type": "Secondary", "source": "security-advisories@github.com", "description": [{"lang": "en", "value": "CWE-915"}]}], "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."}, {"lang": "es", "value": "Rocket.Chat es una plataforma de comunicaciones de c\u00f3digo abierto, segura y totalmente personalizable. Antes de las versiones 8.5.0, 8.4.1, 8.3.3, 8.2.3, 8.1.4, 8.0.5, 7.13.7 y 7.10.11, el m\u00e9todo DDP sendFileMessage de Rocket.Chat pasa el objeto de archivo completo proporcionado por el atacante a Uploads.updateFileComplete, que lo fusiona directamente en una actualizaci\u00f3n $set de MongoDB a trav\u00e9s de Object.assign. No existe una lista de permitidos de campos escribibles. Un atacante puede, por lo tanto, reescribir cualquier columna en su propio registro de carga, notablemente los campos \u2019store\u2019 y los campos de ruta espec\u00edficos de \u2019store\u2019. Esta vulnerabilidad se corrige en las versiones 8.5.0, 8.4.1, 8.3.3, 8.2.3, 8.1.4, 8.0.5, 7.13.7 y 7.10.11."}], "lastModified": "2026-10-25T22:10:00.150", "sourceIdentifier": "security-advisories@github.com"}