What is CVE-2026-48793?

CVE-2026-48793 is a high-severity vulnerability in Jellyfin, classified under Argument Injection. CVSS score: 8.8/10. Published 2026-06-24.

How severe is CVE-2026-48793?

High severity. CVSS v3 base score is 8.8 out of 10.

Vulnerability in Jellyfin

CVE-2026-48793

Jellyfin is an open source self hosted media server. Prior to 10.11.10, a potential FFmpeg argument injection vulnerability exists in the subtitle conversion code path. SubtitleEncoder.ConvertTextSubtitleToSrtInternal (SubtitleEncoder.cs…

CVSS v3 metric

CVSS v3 base score 8.8 (High). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H.

Affected products

Jellyfin — versions < 10.11.10

Weakness classification (CWE)

CWE-88 — Argument Injection

References

security-advisories@github.com (x_refsource_CONFIRM)

Frequently asked questions

What is CVE-2026-48793?: CVE-2026-48793 is a high-severity vulnerability in Jellyfin, classified under Argument Injection. CVSS score: 8.8/10. Published 2026-06-24.
How severe is CVE-2026-48793?: High severity. CVSS v3 base score is 8.8 out of 10.