What is CVE-2021-37551?

CVE-2021-37551 is a medium-severity vulnerability in Jetbrains Youtrack, classified under Use of Password Hash With Insufficient Computational Effort. CVSS score: 5.3/10. Published 2021-08-06.

How severe is CVE-2021-37551?

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

Vulnerability in Jetbrains Youtrack

CVE-2021-37551

In JetBrains YouTrack before 2021.2.16363, system user passwords were hashed with SHA-256.

Published 2021-08-06 · 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:L/I:N/A:N.

EPSS exploit prediction

EPSS: 0.007 (51.2th percentile), scored 2026-09-30.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 51st percentile — 51.2% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.007 · newest: 0.007 · change: 0.000

Affected products

Jetbrains Youtrack

Weakness classification (CWE)

CWE-916 — Use of Password Hash With Insufficient Computational Effort

References

blog.jetbrains.com/blog/2021/08/05/jetbrains-security-bulletin-q2-2021/ (Vendor Advisory)

Frequently asked questions

What is CVE-2021-37551?: CVE-2021-37551 is a medium-severity vulnerability in Jetbrains Youtrack, classified under Use of Password Hash With Insufficient Computational Effort. CVSS score: 5.3/10. Published 2021-08-06.
How severe is CVE-2021-37551?: Medium severity. CVSS v3 base score is 5.3 out of 10.