CVE-2019-20101

Name: CVE-2019-20101
Creator: NVD / NIST
Published: 2021-09-14T05:15:07.437+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 5.3/10EPSS 1.33%

Last modified Jun 17, 2026

CVE-2019-20101 is a medium-severity vulnerability rated 5.3/10 on the CVSS scale. Affected versions of Atlassian Jira Server and Data Center allow anonymous remote attackers to view whitelist rules via a Broken Access Control vulnerability in the /rest/whitelist/<version>/check endpoint. The affected versions are before version 8.13.3, and from version 8.14.0 before 8.14.1.. EPSS estimates a 1.33% chance of exploitation in the next 30 days.

Description

Affected versions of Atlassian Jira Server and Data Center allow anonymous remote attackers to view whitelist rules via a Broken Access Control vulnerability in the /rest/whitelist/<version>/check endpoint. The affected versions are before version 8.13.3, and from version 8.14.0 before 8.14.1.

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

1.33%

67.5th percentile

Probability of exploitation in the next 30 days. Learn more

Affected Software

Vendor	Product	Versions	Update
Atlassian	Data Center	< 8.13.3	—
Atlassian	Data Center	8	14
Atlassian	Jira	< 8.13.3	—
Atlassian	Jira	8	14.0

References

https://ecosystem.atlassian.net/browse/AW-20Issue Tracking, Vendor Advisory
https://jira.atlassian.com/browse/JRASERVER-72618Vendor Advisory
https://ecosystem.atlassian.net/browse/AW-20Issue Tracking, Vendor Advisory
https://jira.atlassian.com/browse/JRASERVER-72618Vendor Advisory

Timeline

Published: Sep 14, 2021
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2019-20101?

How severe is CVE-2019-20101?

CVE-2019-20101 has a CVSS score of 5.3/10 (MEDIUM severity). The EPSS model estimates a 1.33% probability of exploitation in the next 30 days.

How do I fix CVE-2019-20101?

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-2019-20101?

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

Scan your code now

Source: NVD / NIST