CVE-2026-35200

Parse Server is an open source backend that can be deployed to any infrastructure that can run Node.js. Prior to 8.6.73 and 9.7.1-alpha.4, a file can be uploaded with a filename extension that passes the file extension allowlist (e.g., .txt) but with a Content-Type header that differs from the extension (e.g., text/html). The Content-Type is passed to the storage adapter without consistency validation. Storage adapters that store and serve the provided Content-Type (such as S3 or GCS) serve the file with the mismatched Content-Type. The default GridFS adapter is not affected because it derives Content-Type from the filename at serving time. This vulnerability is fixed in 8.6.73 and 9.7.1-alpha.4.

CVSS v3 5.4 MEDIUM

5.4^/10

CVSS v3 : MEDIUM

Vector :

Exploitability : 2.3 / Impact : 2.7

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required LOW

User Interaction REQUIRED

Confidentiality Impact LOW

Integrity Impact LOW

Availability Impact NONE

Scope CHANGED

References

Link	Resource
https://github.com/parse-community/parse-server/pull/10383	Issue Tracking Patch
https://github.com/parse-community/parse-server/pull/10384	Issue Tracking Patch
https://github.com/parse-community/parse-server/security/advisories/GHSA-vr5f-2r24-w5hc	Mitigation Patch Vendor Advisory

Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:parseplatform:parse-server::::::node.js::*
	cpe:2.3:a:parseplatform:parse-server::::::node.js::*
	cpe:2.3:a:parseplatform:parse-server:9.7.1:alpha1::::node.js::*
	cpe:2.3:a:parseplatform:parse-server:9.7.1:alpha2::::node.js::*
	cpe:2.3:a:parseplatform:parse-server:9.7.1:alpha3::::node.js::*

History

No history.

Information

Published : 2026-04-06 20:16

Updated : 2026-07-24 21:10

NVD link : CVE-2026-35200

Mitre link : CVE-2026-35200

CVE.ORG link : CVE-2026-35200

JSON object : View

Products Affected

parseplatform

parse-server

CWE

CWE-436

Interpretation Conflict

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Prior to 8.6.73 and 9.7.1-alpha.4, a file can be uploaded with a filename extension that passes the file extension allowlist (e.g., .txt) but with a Content-Type header that differs from the extension (e.g., text/html). The Content-Type is passed to the storage adapter without consistency validation. Storage adapters that store and serve the provided Content-Type (such as S3 or GCS) serve the file with the mismatched Content-Type. The default GridFS adapter is not affected because it derives Content-Type from the filename at serving time. This vulnerability is fixed in 8.6.73 and 9.7.1-alpha.4."}, {"lang": "es", "value": "Parse Server es un backend de c\u00f3digo abierto que puede ser desplegado en cualquier infraestructura que pueda ejecutar Node.js. Antes de 8.6.73 y 9.7.1-alpha.4, se puede subir un archivo con una extensi\u00f3n de nombre de archivo que pasa la lista de permitidos de extensiones de archivo (por ejemplo, .txt) pero con una cabecera Content-Type que difiere de la extensi\u00f3n (por ejemplo, text/html). El Content-Type se pasa al adaptador de almacenamiento sin validaci\u00f3n de consistencia. Los adaptadores de almacenamiento que almacenan y sirven el Content-Type proporcionado (como S3 o GCS) sirven el archivo con el Content-Type no coincidente. El adaptador GridFS predeterminado no se ve afectado porque deriva el Content-Type del nombre de archivo en el momento de la entrega. Esta vulnerabilidad est\u00e1 corregida en 8.6.73 y 9.7.1-alpha.4."}], "lastModified": "2026-07-24T21:10:00.143", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:parseplatform:parse-server:*:*:*:*:*:node.js:*:*", "vulnerable": true, "matchCriteriaId": "F448C862-A7B1-4475-85E1-48755F259577", "versionEndExcluding": "8.6.73"}, {"criteria": "cpe:2.3:a:parseplatform:parse-server:*:*:*:*:*:node.js:*:*", "vulnerable": true, "matchCriteriaId": "EF03C109-6DCF-4359-A9EC-44C14A80B9FA", "versionEndExcluding": "9.7.1", "versionStartIncluding": "9.0.0"}, {"criteria": "cpe:2.3:a:parseplatform:parse-server:9.7.1:alpha1:*:*:*:node.js:*:*", "vulnerable": true, "matchCriteriaId": "4F96BFE1-E9D0-4D78-BD1A-1AE1259F3FF9"}, {"criteria": "cpe:2.3:a:parseplatform:parse-server:9.7.1:alpha2:*:*:*:node.js:*:*", "vulnerable": true, "matchCriteriaId": "C80914A3-E910-4C75-A542-768711DF429D"}, {"criteria": "cpe:2.3:a:parseplatform:parse-server:9.7.1:alpha3:*:*:*:node.js:*:*", "vulnerable": true, "matchCriteriaId": "88D6D996-366F-4683-A60A-ADFAD1909EBD"}], "operator": "OR"}]}], "sourceIdentifier": "security-advisories@github.com"}