What is CVE-2021-29490?

CVE-2021-29490 is a medium-severity vulnerability in Jellyfin, classified under Server-Side Request Forgery (SSRF). CVSS score: 5.8/10. Published 2021-05-05.

How severe is CVE-2021-29490?

Medium severity. CVSS v3 base score is 5.8 out of 10.

Is CVE-2021-29490 known to be exploited?

17 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.

SSRF in Jellyfin

CVE-2021-29490

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 p…

Vulnerability class: SSRF (Server-Side Request Forgery)

EPSS: 0.820 (99.2th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.8 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:N/A:N.

Affected products

Jellyfin — versions <= 10.7.2

Weakness classification (CWE)

CWE-918 — Server-Side Request Forgery (SSRF)

Public proof-of-concept exploits

References

github.com/jellyfin/jellyfin/security/advisories/GHSA-rgjw-4fwc-9v96 (x_refsource_CONFIRM)

Frequently asked questions

What is CVE-2021-29490?: CVE-2021-29490 is a medium-severity vulnerability in Jellyfin, classified under Server-Side Request Forgery (SSRF). CVSS score: 5.8/10. Published 2021-05-05.
How severe is CVE-2021-29490?: Medium severity. CVSS v3 base score is 5.8 out of 10.
Is CVE-2021-29490 known to be exploited?: 17 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.