Vulnerability in Atlassian Data Center

CVE-2021-26069

Affected versions of Atlassian Jira Server and Data Center allow unauthenticated remote attackers to download temporary files and enumerate project keys via an Information Disclosure vulnerability in the /rest/api/1.0/issues/{id}/ActionsAndOperations API endpoint. The affected versions are before version 8.5.11, from version 8.6.0 before 8.13.3, and from version 8.14.0 before 8.15.0.

EPSS: 0.025 (83.1th percentile) — read the EPSS interpretation.

CVSS v3 metric

CVSS v3 base score 5.3 (Medium). Vector: CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:N/A:N.

Affected products

Weakness classification (CWE)

References

Frequently asked questions

What is CVE-2021-26069?
CVE-2021-26069 is a medium-severity vulnerability in Atlassian Data Center, classified under Improper Neutralization of Special Elements in Output Used by a Downstream Component (Injection). CVSS score: 5.3/10. Published 2021-03-22.
How severe is CVE-2021-26069?
Medium severity. CVSS v3 base score is 5.3 out of 10.