CVE-2021-29490
Verions prior to 10.7.3 vulnerable to unauthenticated Server-Side Request Forgery (SSRF) attacks via the imageUrl parameter.
Does this matter?
EPSS puts the probability of exploitation in the next 30 days at 69.9%, higher than 99% of all known CVEs. Patch or mitigate before the next change window.
Description
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.
- CVSS 3.1
- 5.8 MEDIUMCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:N/A:N
- EPSS
- 69.86% probability · 99th percentile
- CISA KEV
- Not listed
- Weakness
- CWE-918
- Affected
- jellyfin/jellyfin
- Source
- security-advisories@github.com
References
- https://github.com/jellyfin/jellyfin/security/advisories/GHSA-rgjw-4fwc-9v96Patch, Third Party Advisory
- https://github.com/jellyfin/jellyfin/security/advisories/GHSA-rgjw-4fwc-9v96Patch, Third Party Advisory
Source: NVD record, EPSS from FIRST.org, KEV from CISA. Refreshed daily.