What is CVE-2020-26948?

CVE-2020-26948 is a critical-severity vulnerability in Emby, classified under Server-Side Request Forgery (SSRF). CVSS score: 9.8/10. Published 2020-10-10.

How severe is CVE-2020-26948?

Critical severity. CVSS v3 base score is 9.8 out of 10.

Is CVE-2020-26948 known to be exploited?

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

SSRF in Emby

CVE-2020-26948

Emby Server before 4.5.0 allows SSRF via the Items/RemoteSearch/Image ImageURL parameter.

Vulnerability class: SSRF (Server-Side Request Forgery)

Published 2020-10-10 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 9.8 (Critical). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H.

EPSS exploit prediction

EPSS: 0.872 (99.8th percentile), scored 2026-10-16.

High probability of exploitation in the next 30 days — patch promptly. 100th percentile — 99.8% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.872 · newest: 0.872 · change: 0.000

Affected products

Emby

Weakness classification (CWE)

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

Public proof-of-concept exploits

References

github.com/btnz-k/emby_ssrf (Third Party Advisory)
github.com/btnz-k/emby_ssrf/blob/master/emby_scan.rb (Third Party Advisory, Broken Link)

Frequently asked questions

What is CVE-2020-26948?: CVE-2020-26948 is a critical-severity vulnerability in Emby, classified under Server-Side Request Forgery (SSRF). CVSS score: 9.8/10. Published 2020-10-10.
How severe is CVE-2020-26948?: Critical severity. CVSS v3 base score is 9.8 out of 10.
Is CVE-2020-26948 known to be exploited?: 16 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.