CVE-2026-35200 - Parse Server has a file upload Content-Type override via extension mismatch

CVE-2026-35200 - Parse Server has a file upload Content-Type override via extension mismatch

https://cvefeed.io/rssfeed/latest.atom / Tue, 04/07/2026 - 00:10
CVE ID :CVE-2026-35200
Published : April 6, 2026, 8:16 p.m. | 51 minutes ago
Description :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.
Severity: 2.1 | LOW
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