CVE-2026-126499
7.4, highjellyfin Path Traversal Vulnerability
- CVSS
- 7.4, high high CVSS v3.1
- EPSS, next 30 days
- n/a
- Exploitation
- No public evidence
- Published
- 11 Nov 2026today
Description
Jellyfin before 12.0 contains a path traversal vulnerability in the DELETE /Library/VirtualFolders and POST /Library/VirtualFolders/Name endpoints that allows attackers to delete or move directories via unvalidated library names. Unauthenticated attackers can supply names like .. or absolute paths before setup completes to recursively delete the data directory and jellyfin.db.
Details
- Vendor
- Jellyfin
- Product
- jellyfin
- Weakness
- CWE-22 (opens in a new tab)
- Status
- Awaiting analysis
- Updated
- 11 Nov 2026
- Assigner
- disclosure@vulncheck.com
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:H/A:H
References 6
Patches and fixes 1
Advisories 1
Other references 4
- github.com /jellyfin/jellyfin/blob/v10.11.11/Emby.Server.Implementations/Library/LibraryManager.cs#L3255-L3275 (opens in a new tab)
- github.com /jellyfin/jellyfin/blob/v10.11.11/Jellyfin.Api/Controllers/LibraryStructureController.cs#L127-L176 (opens in a new tab)
- github.com /jellyfin/jellyfin/releases/tag/v12.0 (opens in a new tab)
- vulncheck.com /advisories/jellyfin-before-12.0-path-traversal-via-library-virtualfolders-endpoints (opens in a new tab)
The kind is read from NVD's tags where present and from the shape of the URL otherwise, so treat it as a hint.
Beyond this page
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Assembled from the NVD 2.0 API, the CISA Known Exploited Vulnerabilities Catalog and FIRST EPSS. Scores are as of our last collection on 11 Nov 2026, not the live upstream state.