Jellyfin
CVE-2021-29490
MEDIUM
Vulnerability Assessment
| Weakness |
CWE
OWASP Top 10:2025
A01:2025 - Broken Access Control
ASVS 5.0
V4 - API and Web Service URL allowlisting, SSRF prevention
MITRE ATT&CK
2 techniques across 2 tactics: Initial Access, Credential Access The technique list with ATT&CK links and the kill-chain view is part of the Basic plan and up. |
| Impact | CVSS score of 5.8 (MEDIUM). Attack characteristics: network attack vector, low complexity, no privileges required, no user interaction not required. |
| Exploit ScenarioDerived | A remote attacker could make the server perform requests to unintended internal or external resources by sending crafted requests to the affected application. No authentication is required to exploit this vulnerability. |
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Alert meAnalysisAI
Jellyfin is a free software media system that provides media from a dedicated server to end-user devices via multiple apps. Rated medium severity (CVSS 5.8), this vulnerability is remotely exploitable, no authentication required, low attack complexity. This Server-Side Request Forgery (SSRF) vulnerability could allow attackers to make the server perform requests to unintended internal or external resources.
RemediationAI
A vendor patch is available. Apply the latest security update as soon as possible. Validate and allowlist destination URLs, block requests to internal networks, use network segmentation.
Affects your stack
Find out whether the stacks and servers you run are on an affected version.
Checking this CVE against your own stacks and servers is part of the Basic plan and up.
Technical ContextAI · show details
This vulnerability is classified as Server-Side Request Forgery (SSRF) (CWE-918), which allows attackers to make the server perform requests to unintended internal or external resources. Jellyfin is a free software media system that provides media from a dedicated server to end-user devices via multiple apps. Verions prior to 10.7.3 vulnerable to unauthenticated Server-Side Request Forgery (SSRF) attacks via the imageUrl parameter. This issue potentially exposes both internal and external HTTP servers or other resources available via HTTP GET that are visible from the Jellyfin server. The vulnerability is patched in version 10.7.3. As a workaround, disable external access to the API endpoints /Items/*/RemoteImages/Download, /Items/RemoteSearch/Image and /Images/Remote via reverse proxy, or limit to known-friendly IPs. Affected products include: Jellyfin. Version information: prior to 10.7.3.
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- Exploit and PoC references, threat intelligence from 22 sources
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Severity by source
AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:N/A:N
Primary rating from NVD · only source for this CVE.
CVSS VectorNVD
DescriptionNVD
Jellyfin is a free software media system that provides media from a dedicated server to end-user devices via multiple apps. Verions prior to 10.7.3 vulnerable to unauthenticated Server-Side Request Forgery (SSRF) attacks via the imageUrl parameter. This issue potentially exposes both internal and external HTTP servers or other resources available via HTTP GET that are visible from the Jellyfin server. The vulnerability is patched in version 10.7.3. As a workaround, disable external access to the API endpoints /Items/*/RemoteImages/Download, /Items/RemoteSearch/Image and /Images/Remote via reverse proxy, or limit to known-friendly IPs.
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
Server-Side Request Forgery exploits applications that fetch remote resources based on user-supplied URLs.
Affected Products (CPE)NVD
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-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
Arbitrary file read via ffmpeg argument injection in Jellyfin media server versions before 10.11.7 allows unauthenticate
Exploit-DB