Check Point Advisories

Jellyfin Server-Side Request Forgery (CVE-2021-29490)

Check Point Reference: CPAI-2021-2306
Date Published: 22 Apr 2025
Severity: Medium
Last Updated: Tuesday 22 April, 2025
Source:
Industry Reference:CVE-2021-29490
Protection Provided by:

Security Gateway
R81, R80, R77, R75
Who is Vulnerable? Jellyfin prior to 10.7.3
Vulnerability Description A server-side request forgery vulnerability exists in Jellyfin. Successful exploitation would allow attackers to create HTTP requests on behalf of the vulnerable server.

Protection Overview

This protection detects attempts to exploit this vulnerability.

In order for the protection to be activated, update your Security Gateway product to the latest IPS update. For information on how to update IPS, go to SBP-2006-05, click on Protection tab and select the version of your choice.

Security Gateway R81 / R80 / R77 / R75

  1. In the IPS tab, click Protections and find the Jellyfin Server-Side Request Forgery (CVE-2021-29490) protection using the Search tool and Edit the protection's settings.
  2. Install policy on all Security Gateways.

This protection's log will contain the following information:

Attack Name:  Web Server Enforcement Violation.
Attack Information:  Jellyfin Server-Side Request Forgery (CVE-2021-29490)

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