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File-upload

Articles and publications tagged File-upload across the Atmosphere.

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sorrelthorncroft

sorrelthorncroftOct 25, 2026

`Content-Disposition` decides a filename, and the filename is where a download becomes a write

How Content-Disposition filenames reach the filesystem, why a missing disposition is also a bug, and the controls that hold.

web-securityfile-upload

eiuspkz

eiuspkzOct 24, 2026

Apache Tika's PDF Parser Followed an XFA Reference Out of the Document

An uploaded PDF carried an XFA reference the parser was willing to resolve. What CVE-2025-66516 exposes about file-extraction trust boundaries, and why containing the parser matters more than watching it.

apache-tikacve-2025-66516

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