Vulnerability in Atlassian Data Center

CVE-2021-39121

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.

EPSS: 0.011 (63.4th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 4.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N.

Affected products

References

Frequently asked questions

What is CVE-2021-39121?
CVE-2021-39121 is a medium-severity vulnerability in Atlassian Data Center. CVSS score: 4.3/10. Published 2021-09-08.
How severe is CVE-2021-39121?
Medium severity. CVSS v3 base score is 4.3 out of 10.