What is CVE-2020-27626?

CVE-2020-27626 is a medium-severity vulnerability in Jetbrains Youtrack, classified under Server-Side Request Forgery (SSRF). CVSS score: 5.3/10. Published 2020-11-16.

How severe is CVE-2020-27626?

Medium severity. CVSS v3 base score is 5.3 out of 10.

Is CVE-2020-27626 known to be exploited?

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

SSRF in Jetbrains Youtrack

CVE-2020-27626

JetBrains YouTrack before 2020.3.5333 was vulnerable to SSRF.

Vulnerability class: SSRF (Server-Side Request Forgery)

Published 2020-11-16 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N.

EPSS exploit prediction

EPSS: 0.013 (69.6th percentile), scored 2026-09-30.

Low probability of exploitation in the next 30 days, but still tracked. 70th percentile — 69.6% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.013 · newest: 0.013 · change: 0.000

Affected products

Jetbrains Youtrack

Weakness classification (CWE)

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

Public proof-of-concept exploits

References

blog.jetbrains.com (Vendor Advisory)
blog.jetbrains.com/2020/11/16/jetbrains-security-bulletin-q3-2020/ (Vendor Advisory)

Frequently asked questions

What is CVE-2020-27626?: CVE-2020-27626 is a medium-severity vulnerability in Jetbrains Youtrack, classified under Server-Side Request Forgery (SSRF). CVSS score: 5.3/10. Published 2020-11-16.
How severe is CVE-2020-27626?: Medium severity. CVSS v3 base score is 5.3 out of 10.
Is CVE-2020-27626 known to be exploited?: 2 public proof-of-concept repositories are indexed. Not currently listed in the CISA KEV catalog.