What’s Vulnerable › Vulnerabilities
CVE-2021-39118
- Severity: medium (CVSS 5.3 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 1.4% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2021-09-14 · updated 2026-06-17
Description
Affected versions of Atlassian Jira Server and Data Center allow remote attackers to discover the usernames and full names of users via an enumeration vulnerability in the /rest/api/1.0/render endpoint. The affected versions are before version 8.19.0.
Affected products
- Atlassian Data Center: before 8.19.0 — fixed in 8.19.0
- Atlassian Jira: before 8.19.0 — fixed in 8.19.0
How to fix
Upgrade to a fixed version: Atlassian Data Center 8.19.0; Atlassian Jira 8.19.0. Check the vendor advisory for mitigations.
References
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