CVE-2021-39121

Description

Affected versions of Atlassian Jira Server and Data Center allow authenticated remote attackers to enumerate the keys of private Jira projects via an Information Disclosure vulnerability in the /rest/api/latest/projectvalidate/key endpoint. The affected versions are before version 8.5.18, from version 8.6.0 before 8.13.10, and from version 8.14.0 before 8.18.2.

4.3

CVSS

Severity: Medium

CVSS 3.1 •

CVSS 2.0 •

EPSS 0.40%

Vendor Advisory atlassian.com

Affected: Atlassian Jira Server

Affected: Atlassian Jira Data Center

References

Link	Tags
https://jira.atlassian.com/browse/JRASERVER-72715	patch vendor advisory

Frequently Asked Questions

What is the severity of CVE-2021-39121?: CVE-2021-39121 has been scored as a medium severity vulnerability.
How to fix CVE-2021-39121?: To fix CVE-2021-39121, make sure you are using an up-to-date version of the affected component(s) by checking the vendor release notes. As for now, there are no other specific guidelines available.
Is CVE-2021-39121 being actively exploited in the wild?: As for now, there are no information to confirm that CVE-2021-39121 is being actively exploited. According to its EPSS score, there is a ~0% probability that this vulnerability will be exploited by malicious actors in the next 30 days.
What software or system is affected by CVE-2021-39121?: CVE-2021-39121 affects Atlassian Jira Server, Atlassian Jira Data Center.

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