# Jellyfin vulnerabilities Source: https://junglewise.ai/threats/technologies/jellyfin Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats Updated: 11 November 2026, 02:07 UTC. Rebuilt every hour. Data: https://junglewise.ai/threats/technologies/jellyfin.json License: CC BY 4.0 with a link back Junglewise Threat Intelligence has tracked 11 vulnerabilities in Jellyfin: 1 in the last 7 days and 3 in the last 90 days, 2 of them critical and 0 exploited in the wild. The most recent, CVE-2026-126499, was published on 11 November 2026. 2 vulnerabilities in the last four weeks, up from none in the four before. ## Counts - Last 7 days: 1 - Last 30 days: 3 - Last 90 days: 3 - All time: 11 (2 critical, 0 exploited in the wild) ## About Jellyfin Jellyfin is a free and open-source media server designed to organize, manage, and stream digital media files to networked devices. ## Latest Jellyfin vulnerabilities - [CVE-2026-126499: Jellyfin path traversal in virtual folder endpoints](https://junglewise.ai/threats/cve-2026-126499-jellyfin-before-12-0-contains-a-path-traversal-vulnerability-in) (high, CVSS 7.4, published 11 Nov 2026) - [CVE-2026-119551: Jellyfin authorization bypass in SuggestionsController.GetSuggestions](https://junglewise.ai/threats/cve-2026-119551-jellyfin-through-12-4-contains-an-authorization-bypass) (medium, CVSS 6.5, published 30 Oct 2026) - [CVE-2026-119549: Jellyfin server-side request forgery in SvgSecurityValidator](https://junglewise.ai/threats/cve-2026-119549-jellyfin-through-12-4-contains-a-server-side-request-forgery) (high, CVSS 7.1, published 30 Oct 2026) - [CVE-2026-49247: Jellyfin path traversal in ClientLog Document endpoint](https://junglewise.ai/threats/cve-2026-49247-jellyfin-path-traversal-in-clientlog-document-endpoint) (high, CVSS 8.8, published 24 Jun 2026) - [CVE-2026-49246: Jellyfin path traversal in MKV attachment extraction](https://junglewise.ai/threats/cve-2026-49246-jellyfin-path-traversal-in-mkv-attachment-extraction) (info, CVSS 1.7, published 24 Jun 2026) - [CVE-2026-49220: Jellyfin stored XSS in user management dashboard via Client header](https://junglewise.ai/threats/cve-2026-49220-jellyfin-stored-xss-in-user-management-dashboard-via-client) (medium, CVSS 5.7, published 24 Jun 2026) - [CVE-2026-48793: Jellyfin FFmpeg argument injection in subtitle conversion](https://junglewise.ai/threats/cve-2026-48793-jellyfin-ffmpeg-argument-injection-in-subtitle-conversion) (high, CVSS 8.8, published 24 Jun 2026) - [CVE-2026-35034: Jellyfin denial of service in SyncPlay group creation](https://junglewise.ai/threats/cve-2026-35034-jellyfin-denial-of-service-in-syncplay-group-creation) (medium, CVSS 6.5, published 14 Apr 2026) - [CVE-2026-35033: Jellyfin ffmpeg argument injection arbitrary file read in StreamOptions](https://junglewise.ai/threats/cve-2026-35033-jellyfin-ffmpeg-argument-injection-arbitrary-file-read-in) (critical, CVSS 9.1, published 14 Apr 2026) - [CVE-2026-35032: Jellyfin privilege escalation via SSRF and file read in LiveTV M3U tuner](https://junglewise.ai/threats/cve-2026-35032-jellyfin-privilege-escalation-via-ssrf-and-file-read-in-livetv) (high, CVSS 8.1, published 14 Apr 2026) - [CVE-2026-35031: Jellyfin path traversal and RCE in subtitle upload endpoint](https://junglewise.ai/threats/cve-2026-35031-jellyfin-path-traversal-and-rce-in-subtitle-upload-endpoint) (critical, CVSS 9.9, published 14 Apr 2026) ## Most severe Jellyfin vulnerabilities - [CVE-2026-35031: Jellyfin path traversal and RCE in subtitle upload endpoint](https://junglewise.ai/threats/cve-2026-35031-jellyfin-path-traversal-and-rce-in-subtitle-upload-endpoint) (critical, CVSS 9.9, published 14 Apr 2026) - [CVE-2026-35033: Jellyfin ffmpeg argument injection arbitrary file read in StreamOptions](https://junglewise.ai/threats/cve-2026-35033-jellyfin-ffmpeg-argument-injection-arbitrary-file-read-in) (critical, CVSS 9.1, published 14 Apr 2026) - [CVE-2026-49247: Jellyfin path traversal in ClientLog Document endpoint](https://junglewise.ai/threats/cve-2026-49247-jellyfin-path-traversal-in-clientlog-document-endpoint) (high, CVSS 8.8, published 24 Jun 2026) - [CVE-2026-48793: Jellyfin FFmpeg argument injection in subtitle conversion](https://junglewise.ai/threats/cve-2026-48793-jellyfin-ffmpeg-argument-injection-in-subtitle-conversion) (high, CVSS 8.8, published 24 Jun 2026) - [CVE-2026-35032: Jellyfin privilege escalation via SSRF and file read in LiveTV M3U tuner](https://junglewise.ai/threats/cve-2026-35032-jellyfin-privilege-escalation-via-ssrf-and-file-read-in-livetv) (high, CVSS 8.1, published 14 Apr 2026) - [CVE-2026-126499: Jellyfin path traversal in virtual folder endpoints](https://junglewise.ai/threats/cve-2026-126499-jellyfin-before-12-0-contains-a-path-traversal-vulnerability-in) (high, CVSS 7.4, published 11 Nov 2026) - [CVE-2026-119549: Jellyfin server-side request forgery in SvgSecurityValidator](https://junglewise.ai/threats/cve-2026-119549-jellyfin-through-12-4-contains-a-server-side-request-forgery) (high, CVSS 7.1, published 30 Oct 2026) - [CVE-2026-35034: Jellyfin denial of service in SyncPlay group creation](https://junglewise.ai/threats/cve-2026-35034-jellyfin-denial-of-service-in-syncplay-group-creation) (medium, CVSS 6.5, published 14 Apr 2026) - [CVE-2026-119551: Jellyfin authorization bypass in SuggestionsController.GetSuggestions](https://junglewise.ai/threats/cve-2026-119551-jellyfin-through-12-4-contains-an-authorization-bypass) (medium, CVSS 6.5, published 30 Oct 2026) - [CVE-2026-49220: Jellyfin stored XSS in user management dashboard via Client header](https://junglewise.ai/threats/cve-2026-49220-jellyfin-stored-xss-in-user-management-dashboard-via-client) (medium, CVSS 5.7, published 24 Jun 2026) ## Vulnerabilities per week 2 vulnerabilities in the last four weeks, up from none in the four before. | Week of | Vulns | Critical | Exploited | | --- | --- | --- | --- | | 17 Aug 2026 | 0 | 0 | 0 | | 24 Aug 2026 | 0 | 0 | 0 | | 31 Aug 2026 | 0 | 0 | 0 | | 7 Sep 2026 | 0 | 0 | 0 | | 14 Sep 2026 | 0 | 0 | 0 | | 21 Sep 2026 | 0 | 0 | 0 | | 28 Sep 2026 | 0 | 0 | 0 | | 5 Oct 2026 | 0 | 0 | 0 | | 12 Oct 2026 | 0 | 0 | 0 | | 19 Oct 2026 | 0 | 0 | 0 | | 26 Oct 2026 | 2 | 0 | 0 | | 2 Nov 2026 | 0 | 0 | 0 | | 9 Nov 2026 | 1 | 0 | 0 | ## Sources NVD, GitHub Security Advisories, OSV, the CISA Known Exploited Vulnerabilities catalog, FIRST EPSS and vendor advisories. Rebuilt every hour. Cite as: Junglewise Threat Intelligence, "Jellyfin vulnerabilities", https://junglewise.ai/threats/technologies/jellyfin, 11 November 2026.