CVE-2021-21402
high-risk
Published 2021-03-23
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.
Do I need to act?
!
90.5% chance of exploitation in next 30 days
EPSS score — higher than 10% of all CVEs
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Not on CISA KEV list
No confirmed active exploitation reported to CISA
?
Patch status unknown
Check vendor advisories for fix availability and mitigation guidance
7
CVSS 7.7/10
High
NETWORK
/ LOW complexity
Affected Products (1)
Jellyfin
Affected Vendors
References (6)
Third Party Advisory
https://github.com/jellyfin/jellyfin/security/advisories/GHSA-wg4c-c9g9-rxhx
Third Party Advisory
https://github.com/jellyfin/jellyfin/security/advisories/GHSA-wg4c-c9g9-rxhx
52
/ 100
high-risk
Severity
27/34 · High
Exploitability
20/34 · Moderate
Exposure
5/34 · Minimal