CVE-2019-12737

Name: CVE-2019-12737
Creator: NVD / NIST
Published: 2019-10-02T19:15:14.717+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 5.3/10EPSS 0.68%

Last modified Jun 17, 2026

CVE-2019-12737 is a medium-severity vulnerability rated 5.3/10 on the CVSS scale. UserHashedTableAuth in JetBrains Ktor framework before 1.2.0-rc uses a One-Way Hash with a Predictable Salt for storing user credentials.. EPSS estimates a 0.68% chance of exploitation in the next 30 days.

Description

UserHashedTableAuth in JetBrains Ktor framework before 1.2.0-rc uses a One-Way Hash with a Predictable Salt for storing user credentials.

Metrics

CVSS 3.1

5.3/10

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N

EPSS Probability

0.68%

47.7th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-916

Affected Software

Vendor	Product	Versions	Update
Jetbrains	Ktor	<= 1.1.5	—
Jetbrains	Ktor	1.2.0	Rc

References

https://blog.jetbrains.com/blog/2019/09/26/jetbrains-security-bulletin-q2-2019/Vendor Advisory
https://blog.jetbrains.com/blog/2019/09/26/jetbrains-security-bulletin-q2-2019/Vendor Advisory

Timeline

Published: Oct 2, 2019
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2019-12737?

UserHashedTableAuth in JetBrains Ktor framework before 1.2.0-rc uses a One-Way Hash with a Predictable Salt for storing user credentials.

How severe is CVE-2019-12737?

CVE-2019-12737 has a CVSS score of 5.3/10 (MEDIUM severity). The EPSS model estimates a 0.68% probability of exploitation in the next 30 days.

How do I fix CVE-2019-12737?

Check the vendor references and advisories linked above for patched versions and mitigation guidance. You can also run a Strix scan to test if your systems are affected.

Are you affected by CVE-2019-12737?

Run a free Strix scan to check your systems for this vulnerability.

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Source: NVD / NIST