Path Traversal in Jellyfin
CVE-2021-21402
Jellyfin is a Free Software Media System. In Jellyfin before version 10.7.1, with certain endpoints, well crafted requests will allow arbitrary file read from a Jellyfin server's file system. This issue is more prevalent when Windows is us…
Vulnerability class: Path Traversal (Directory Traversal)
EPSS: 0.908 (99.6th percentile) — read the EPSS interpretation.
CVSS v3 metric
CVSS v3 base score 7.7 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:N/A:N.
Affected products
- Jellyfin — versions < 10.7.1
Weakness classification (CWE)
Public proof-of-concept exploits
References
- github.com/jellyfin/jellyfin/security/advisories/GHSA-wg4c-c9g9-rxhx (x_refsource_CONFIRM)
- github.com/jellyfin/jellyfin/commit/0183ef8e89195f420c48d2600bc0b72f6d3a7fd7 (x_refsource_MISC)
- github.com/jellyfin/jellyfin/releases/tag/v10.7.1 (x_refsource_MISC)
Frequently asked questions
- What is CVE-2021-21402?
- CVE-2021-21402 is a high-severity vulnerability in Jellyfin, classified under Path Traversal. CVSS score: 7.7/10. Published 2021-03-23.
- How severe is CVE-2021-21402?
- High severity. CVSS v3 base score is 7.7 out of 10.
- Is CVE-2021-21402 known to be exploited?
- 55 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.