What is CVE-2026-49370?

CVE-2026-49370 is a low-severity vulnerability in Jetbrains Youtrack, classified under Insertion of Sensitive Information into Sent Data. CVSS score: 3.4/10. Published 2026-05-29.

How severe is CVE-2026-49370?

Low severity. CVSS v3 base score is 3.4 out of 10.

Vulnerability in Jetbrains Youtrack

CVE-2026-49370

In JetBrains YouTrack before 2026.1.13162 information disclosure was possible on fetchApp requests

Published 2026-05-29 · last modified 2026-07-22.

CVSS v3 metric

CVSS v3 base score 3.4 (Low). Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:R/S:C/C:L/I:N/A:N.

EPSS exploit prediction

EPSS: 0.003 (24.1th percentile), scored 2026-09-30.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 24th percentile — 24.1% of CVEs in the catalogue have a lower EPSS than this one. How to read EPSS.

EPSS over last 30 days · oldest: 0.002 · newest: 0.003 · change: +0.001

Affected products

Jetbrains Youtrack — versions 0

Weakness classification (CWE)

CWE-201 — Insertion of Sensitive Information into Sent Data

References

www.jetbrains.com/privacy-security/issues-fixed/ (Vendor Advisory)

Frequently asked questions

What is CVE-2026-49370?: CVE-2026-49370 is a low-severity vulnerability in Jetbrains Youtrack, classified under Insertion of Sensitive Information into Sent Data. CVSS score: 3.4/10. Published 2026-05-29.
How severe is CVE-2026-49370?: Low severity. CVSS v3 base score is 3.4 out of 10.