CVE-2026-49247
- Source
- https://cve.org/CVERecord?id=CVE-2026-49247
- Import Source
- https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-49247.json
- JSON Data
- https://api.osv.dev/v1/vulns/CVE-2026-49247
- Aliases
-
- GHSA-jg92-mrxq-vv75
- Published
- 2026-06-24T18:18:46Z
- Modified
- 2026-10-28T02:31:08Z
- Severity
-
- 8.8 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
- Summary
- Jellyfin: Potential Authenticated path traversal in /ClientLog/Document
- Details
-
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 result, any authenticated non-admin user can include ../ sequences in the Client field to cause Jellyfin to write attacker-controlled content to arbitrary paths reachable by the Jellyfin service user, with a forced .log suffix. This vulnerability is fixed in 10.11.10.
- Database specific
{ "cna_assigner": "GitHub_M", "cwe_ids": [ "CWE-22" ], "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/49xxx/CVE-2026-49247.json" }- References
Affected packages
Git / github.com/jellyfin/jellyfin
Affected ranges
- Type
- GIT
- Repo
- https://github.com/jellyfin/jellyfin
- Events
- Database specific
-
Show details
{ "extracted_events": [ { "range": [ { "introduced": "10.9.0" }, { "fixed": "10.11.10" } ], "source": "AFFECTED_FIELD", "strategy": "StringRangeExpression" }, { "range": [ { "introduced": "0" }, { "fixed": "10.11.10" } ], "source": "DESCRIPTION" } ] }