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Exploits
ID:12598 - Exploit for Path traversal in Jellyfin - CVE-2026-35031
ID:12598 - Exploit for Path traversal in Jellyfin - CVE-2026-35031
Published: April 17, 2026
Vulnerability identifier: #VU126129
Vulnerability risk: Medium
CVE-ID: CVE-2026-35031
CWE-ID: CWE-22
Exploitation vector: Remote access
Vulnerable software:
Jellyfin
Jellyfin
Link to public exploit:
Vulnerability description
The vulnerability allows a remote user to execute arbitrary code.
The vulnerability exists due to path traversal in the subtitle upload endpoint when processing the Format field in subtitle upload requests. A remote user can upload a specially crafted subtitle to write arbitrary files and chain the issue to execute arbitrary code.
Exploitation requires the Upload Subtitles permission.
Remediation
Install security update from vendor's website.