Jellyfin
CVE-2025-31499
HIGH
Vulnerability Assessment
| Weakness |
CWE
OWASP Top 10:2025
A05:2025 - Injection
ASVS 5.0
V1 - Encoding and Sanitization Argument sanitization
|
| Impact | CVSS score of 7.6 (HIGH). Attack characteristics: network attack vector, high complexity, low privileges required, no user interaction not required. EPSS exploitation probability: 0.71%. |
| Exploit ScenarioDerived | This vulnerability can be exploited remotely over the network. Successful exploitation could compromise the high-severity affected system. |
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Alert meAnalysisAIv1 – Mar 28, 2026
Jellyfin is an open source self hosted media server. Rated high severity (CVSS 7.6), this vulnerability is remotely exploitable.
RemediationAI
A vendor patch is available. Apply the latest security update as soon as possible. Apply vendor patches when available. Implement network segmentation and monitoring as interim mitigations.
Affects your stack
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Technical ContextAI · show details
This vulnerability is classified under CWE-88. Jellyfin is an open source self hosted media server. Versions before 10.10.7 are vulnerable to argument injection in FFmpeg. This can be leveraged to possibly achieve remote code execution by anyone with credentials to a low-privileged user. This vulnerability was previously reported in CVE-2023-49096 and patched in version 10.8.13, but the patch can be bypassed. The original fix sanitizes some parameters to make injection impossible, but certain unsanitized parameters can still be used for argument injection. The same unauthenticated endpoints are vulnerable: /Videos/<itemId>/stream and /Videos/<itemId>/stream.<container>, likely alongside similar endpoints in AudioController. This argument injection can be exploited to achieve arbitrary file write, leading to possible remote code execution through the plugin system. While the unauthenticated endpoints are vulnerable, a valid itemId is required for exploitation and any authenticated attacker could easily retrieve a valid itemId to make the exploit work. This vulnerability is patched in version 10.10.7. Affected products include: Jellyfin. Version information: before 10.10.7.
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Severity by source
CVSS:4.0/AV:N/AC:H/AT:N/PR:L/UI:N/VC:H/VI:H/VA:L/SC:N/SI:N/SA:N
Primary rating from GitHub Advisory · only source for this CVE.
CVSS VectorGitHub Advisory
Lifecycle Timeline
2DescriptionGitHub Advisory
Jellyfin is an open source self hosted media server. Versions before 10.10.7 are vulnerable to argument injection in FFmpeg. This can be leveraged to possibly achieve remote code execution by anyone with credentials to a low-privileged user. This vulnerability was previously reported in CVE-2023-49096 and patched in version 10.8.13, but the patch can be bypassed. The original fix sanitizes some parameters to make injection impossible, but certain unsanitized parameters can still be used for argument injection. The same unauthenticated endpoints are vulnerable: /Videos/<itemId>/stream and /Videos/<itemId>/stream.<container>, likely alongside similar endpoints in AudioController. This argument injection can be exploited to achieve arbitrary file write, leading to possible remote code execution through the plugin system. While the unauthenticated endpoints are vulnerable, a valid itemId is required for exploitation and any authenticated attacker could easily retrieve a valid itemId to make the exploit work. This vulnerability is patched in version 10.10.7.
Executive ViewAI
Organizations using is an open source self hosted media server. face notable risk from CVE-2025-31499 rated CVSS 7.6. Exploitation could compromise the security of affected deployments. A patch is available and should be applied as part of regular vulnerability management.
Apply vendor patch. If immediate patching is not feasible: (1) Implement network-level access controls to limit exposure; (2) Enable enhanced monitoring and alerting; (3) Apply principle of least privilege.
Threat Intelligence Overview
NVD
CVE.org
EPSS
GitHub
How this decision was reached
The engine reads each signal below and applies a fixed list of rules from top to bottom. The first rule that matches sets the recommended action – like a statement, every line is shown.
What every action level means
SSVC AssessmentENISA
Priority Score
Attack Technique
Remote Code Execution represents the critical moment when an attacker successfully runs arbitrary code on a target system without physical access.
Affected Products (CPE)GitHub Advisory
Jellyfin is a Free Software Media System for managing and streaming media. Rated high severity (CVSS 8.8), this vulnerab
In Jellyfin before 10.8, the /users endpoint has incorrect access control for admin functionality. Rated high severity (
Jellyfin is a free-software media system. Rated high severity (CVSS 8.1), this vulnerability is remotely exploitable, lo
Jellyfin up to v10.7.7 was discovered to contain a Server-Side Request Forgery (SSRF) via the component /Repositories. R
Jellyfin is a system for managing and streaming media. Rated high severity (CVSS 7.2), this vulnerability is remotely ex
Jellyfin is a Free Software Media System. Rated medium severity (CVSS 6.5), this vulnerability is remotely exploitable,
Arbitrary code execution in Jellyfin iOS GitHub Actions workflow. CVSS 10.0.
Jellyfin is a free software media system that provides media from a dedicated server to end-user devices via multiple ap
jellyfin-web is the web client for Jellyfin, a free-software media system. Rated medium severity (CVSS 5.4), this vulner
In Jellyfin 10.8.x through 10.8.3, the name of a playlist is vulnerable to stored XSS. Rated medium severity (CVSS 5.4),
In Jellyfin 10.8.x through 10.8.3, the name of a collection is vulnerable to stored XSS. Rated medium severity (CVSS 5.4
In Jellyfin before 10.8, stored XSS allows theft of an admin access token. Rated medium severity (CVSS 5.4), this vulner
Exploit-DB