Jellyfin 10.7.2 - Server Side Request Forgery

Jellyfin is a free software media system. Versions 10.7.2 and below are vulnerable to unauthenticated Server-Side Request Forgery SSRF attacks via the imageUrl parameter. id: CVE-2021-29490 info: name: Jellyfin 10.7.2 - Server Side Request Forgery author: alph4byt3 severity: medium description: |...

Jellyfin <10.7.0 - Local File Inclusion

Jellyfin before 10.7.0 is vulnerable to local file inclusion. This issue is more prevalent when Windows is used as the host OS. Servers exposed to public Internet are potentially at risk. id: CVE-2021-21402 info: name: Jellyfin 10.7.0 - Local File Inclusion author: dwisiswant0 severity: medium...

CVE-2026-49220

Jellyfin is an open source self hosted media server. Prior to 10.11.9, a potential XSS attack exists in Jellyfin which can allow a non-privileged user to execute arbitrary Javascript in the context of a logged-in Administrative user, resulting in numerous potential issues. The Client header durin...

CVE-2026-49246

Jellyfin is an open source self hosted media server. Prior to 10.11.10, a specifically crafted MKV file containing forged filename tags can be leveraged to exploit missing path sanitization during playback. Jellyfin treats the MKV file name tag on MKV attachments as trusted and passes it...

CVE-2026-49247

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-2026-48793

Jellyfin is an open source self hosted media server. Prior to 10.11.10, a potential FFmpeg argument injection vulnerability exists in the subtitle conversion code path. SubtitleEncoder.ConvertTextSubtitleToSrtInternal SubtitleEncoder.cs, line 382 interpolates the subtitle file path into FFmpeg...

Arbitrary Argument Injection

Overview Jellyfin.Common is an a Free Software Media System that puts you in control of managing and streaming your media. Affected versions of this package are vulnerable to Arbitrary Argument Injection via the SubtitleEncoder.ConvertTextSubtitleToSrtInternal process. An attacker can achieve...

Directory Traversal

Overview Jellyfin.Common is an a Free Software Media System that puts you in control of managing and streaming your media. Affected versions of this package are vulnerable to Directory Traversal via the POST /ClientLog/Document endpoint, which uses unsanitized values from the Authorization header...

CVE-2026-49220 Jellyfin: Potential XSS in user management

Jellyfin is an open source self hosted media server. Prior to 10.11.9, a potential XSS attack exists in Jellyfin which can allow a non-privileged user to execute arbitrary Javascript in the context of a logged-in Administrative user, resulting in numerous potential issues. The Client header durin...

CVE-2026-49220

Jellyfin is an open source self hosted media server. Prior to 10.11.9, a potential XSS attack exists in Jellyfin which can allow a non-privileged user to execute arbitrary Javascript in the context of a logged-in Administrative user, resulting in numerous potential issues. The Client header durin...

CVE-2026-48793 Jellyfin: Potential FFmpeg argument injection via unescaped subtitle file path

Jellyfin is an open source self hosted media server. Prior to 10.11.10, a potential FFmpeg argument injection vulnerability exists in the subtitle conversion code path. SubtitleEncoder.ConvertTextSubtitleToSrtInternal SubtitleEncoder.cs, line 382 interpolates the subtitle file path into FFmpeg...

CVE-2026-48793

Jellyfin is affected by CVE-2026-48793 prior to version 10.11.10. The issue arises in the subtitle conversion path where SubtitleEncoder.ConvertTextSubtitleToSrtInternal interpolates the subtitle file path into FFmpeg command-line arguments without normalizing the path, allowing injection of arbi...

CVE-2026-49246 Jellyfin: Potential MKV attachment filename path traversal to RCE

Jellyfin is an open source self hosted media server. Prior to 10.11.10, a specifically crafted MKV file containing forged filename tags can be leveraged to exploit missing path sanitization during playback. Jellyfin treats the MKV file name tag on MKV attachments as trusted and passes it...

CVE-2026-49246

Jellyfin is an open source self hosted media server. Prior to 10.11.10, a specifically crafted MKV file containing forged filename tags can be leveraged to exploit missing path sanitization during playback. Jellyfin treats the MKV file name tag on MKV attachments as trusted and passes it...

CVE-2026-49246

Summary: Jellyfin is vulnerable to a path traversal leading to remote code execution via crafted MKV attachment filename tags. The issue stems from unsanitized input being passed to Path.Combine(attachmentFolder, fileName) in PathManager.GetAttachmentPath, where Path.Combine does not normalise or...

CVE-2026-49247

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 (open-source self-hosted media server) has a authenticated path-traversal vulnerability in the POST /ClientLog/Document endpoint affecting 10.9.0 through 10.11.10. The endpoint uses the Authorization header’s Client and Version fields to form on-disk filenames for client-uploaded log doc...

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-2026-52059

Name of the Vulnerable Software and Affected Versions Jellyfin versions prior to 10.11.10 Description An argument injection issue exists in the subtitle conversion process. The function ConvertTextSubtitleToSrtInternal interpolates the subtitle file path into FFmpeg command-line arguments without...

PT-2026-52066

Name of the Vulnerable Software and Affected Versions Jellyfin versions prior to 10.11.10 Description Missing path sanitization during playback allows the use of a specially crafted MKV file with forged filename tags to redirect attachment extraction to any absolute path on the disk. This occurs...