The API in Atlassian Jira Server and Data Center before version 8.6.0 allows authenticated remote attackers to determine project titles they do not have access to via an improper authorization vulnerability.
Severity
CVSS 3.1
4.3 medium
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:N/A:N
EPSS
1.3% chance of exploitation in the next 30 days; higher than 70% of CVEs (scores of 2026-10-31)