CVE-2026-49247 Jellyfin: Potential Authenticated path traversal in /ClientLog/Document

Jellyfin is an open source self hosted media server. From 10.9.0 until 10.11.10, the POST /ClientLog/Document endpoint accepts the Authorization header's Client and Version fields and uses them unsanitized as components of the on-disk filename when persisting client-uploaded log documents. As a...

CVE-2026-49247 Jellyfin: Potential Authenticated path traversal in /ClientLog/Document

Jellyfin is an open source self hosted media server. From 10.9.0 until 10.11.10, the POST /ClientLog/Document endpoint accepts the Authorization header's Client and Version fields and uses them unsanitized as components of the on-disk filename when persisting client-uploaded log documents. As a...

PT-2026-52067

Name of the Vulnerable Software and Affected Versions Jellyfin versions 10.9.0 through 10.11.9 Description The POST '/ClientLog/Document' endpoint fails to sanitize the Client and Version fields within the Authorization header when saving client-uploaded log documents to the disk. An authenticate...

CVE-2026-49247: Improper Limitation of a Pathname to a Restricted Directory

Jellyfin is an open source self hosted media server. From 10.9.0 until 10.11.10, the POST /ClientLog/Document endpoint accepts the Authorization header's Client and Version fields and uses them unsanitized as components of the on-disk filename when persisting client-uploaded log documents. As a...

PT-2023-22823 · Jellyfin · Jellyfin

Name of the Vulnerable Software and Affected Versions: Jellyfin versions 10.8.0 through 10.8.10 Description: The issue is related to a directory traversal vulnerability inside the ClientLogController, specifically /ClientLog/Document. This vulnerability can be combined with a cross-site scripting...