What is CVE-2019-14954?

CVE-2019-14954 is a medium-severity vulnerability in Jetbrains Intellij Idea, classified under Cleartext Transmission of Sensitive Information. CVSS score: 5.9/10. Published 2019-10-01.

How severe is CVE-2019-14954?

Medium severity. CVSS v3 base score is 5.9 out of 10.

Vulnerability in Jetbrains Intellij Idea

CVE-2019-14954

JetBrains IntelliJ IDEA before 2019.2 was resolving the markdown plantuml artifact download link via a cleartext http connection.

Published 2019-10-01 · last modified 2026-06-17.

CVSS v3 metric

CVSS v3 base score 5.9 (Medium). Vector: CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N.

EPSS exploit prediction

EPSS: 0.007 (51.4th percentile), scored 2026-10-01.

Very low probability of exploitation in the next 30 days; routine patching cadence is appropriate. 51st percentile — 51.4% 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 Intellij Idea

Weakness classification (CWE)

CWE-319 — Cleartext Transmission of Sensitive Information

References

blog.jetbrains.com/blog/2019/09/26/jetbrains-security-bulletin-q2-2019/ (Vendor Advisory)

Frequently asked questions

What is CVE-2019-14954?: CVE-2019-14954 is a medium-severity vulnerability in Jetbrains Intellij Idea, classified under Cleartext Transmission of Sensitive Information. CVSS score: 5.9/10. Published 2019-10-01.
How severe is CVE-2019-14954?: Medium severity. CVSS v3 base score is 5.9 out of 10.