Description
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 used as the host OS. Servers that are exposed to the public Internet are potentially at risk. This is fixed in version 10.7.1. As a workaround, users may be able to restrict some access by enforcing strict security permissions on their filesystem, however, it is recommended to update as soon as possible.
Affected products
| Vendor | Product | Affected | Fixed |
|---|---|---|---|
| jellyfin | jellyfin | < 10.7.1 | — |
Public exploits
Exploit or proof-of-concept code for this vulnerability is publicly available, which lowers the bar for attackers. Treat it as a reason to patch sooner.
GitHub 3 repositories
-
jiaocoll/CVE-2021-21402-Jellyfin ★ 1 · Apr 9, 2021
CVE-2021-21402-Jellyfin-任意文件读取
-
givemefivw/CVE-2021-21402 ★ 0 · Apr 16, 2021
CVE-2021-21402 Jellyfin任意文件读取 Wker脚本，可批量。
-
somatrasss/CVE-2021-21402 ★ 0 · Apr 15, 2021
本项目涉及到的仅为安全研究和授权情况下使用，其使用人员有责任和义务遵守当地法律条规。
Sources: PoC-in-GitHub, Metasploit Framework, Exploit-DB — updated daily. Only links are listed; no exploit code is hosted here.
Automated scanner template
A ready-made Nuclei template detects this vulnerability automatically. Vulnerabilities with public scanner templates are typically probed across the internet soon after the template appears — exposed systems should be patched first.
- Jellyfin <10.7.0 - Local File Inclusion http/cves/2021/CVE-2021-21402.yaml
Source: projectdiscovery/nuclei-templates (MIT) — updated daily. Only links are listed.