CVE-2021-43949

Name: CVE-2021-43949
Creator: NVD / NIST
Published: 2022-01-10T16:15:09.587+00:00
License: https://creativecommons.org/publicdomain/zero/1.0/

MEDIUMCVSS 4.3/10EPSS 0.81%

Last modified Jun 17, 2026

CVE-2021-43949 is a medium-severity vulnerability rated 4.3/10 on the CVSS scale. Affected versions of Atlassian Jira Service Management Server and Data Center allow authenticated remote attackers to view private objects via a Broken Access Control vulnerability in the Custom Fields feature. The affected versions are before version 4.21.0.. EPSS estimates a 0.81% chance of exploitation in the next 30 days.

Description

Affected versions of Atlassian Jira Service Management Server and Data Center allow authenticated remote attackers to view private objects via a Broken Access Control vulnerability in the Custom Fields feature. The affected versions are before version 4.21.0.

Metrics

CVSS 3.1

4.3/10

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

EPSS Probability

0.81%

52.2th percentile

Probability of exploitation in the next 30 days. Learn more

Weakness Enumeration

CWE-200

Affected Software

Vendor	Product	Versions
Atlassian	Jira Service Management	< 4.21.0

References

https://jira.atlassian.com/browse/JSDSERVER-10982Issue Tracking, Vendor Advisory
https://jira.atlassian.com/browse/JSDSERVER-10982Issue Tracking, Vendor Advisory

Timeline

Published: Jan 10, 2022
Last Modified: Jun 17, 2026
Status: Modified

Frequently Asked Questions

What is CVE-2021-43949?

How severe is CVE-2021-43949?

CVE-2021-43949 has a CVSS score of 4.3/10 (MEDIUM severity). The EPSS model estimates a 0.81% probability of exploitation in the next 30 days.

How do I fix CVE-2021-43949?

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-2021-43949?

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

Scan your code now

Source: NVD / NIST