What’s Vulnerable › Vulnerabilities
CVE-2019-20403
- Severity: medium (CVSS 5.3 v3.1)
- Exploited in the wild: not listed in CISA KEV
- EPSS: 1.5% probability of exploitation in the next 30 days
- Public exploit or detection template: none known
- Published: 2020-02-06 · updated 2026-06-17
Description
The API in Atlassian Jira Server and Data Center before version 8.6.0 allows remote attackers to determine if a Jira project key exists or not via an information disclosure vulnerability.
Affected products
- Atlassian Jira: from 7.13.0 before 8.5.5 — fixed in 8.5.5
- Atlassian Jira: from 7.13.0 (excl.) before 8.5.5 — fixed in 8.5.5
How to fix
Upgrade to a fixed version: Atlassian Jira 8.5.5; Atlassian Jira 8.5.5. Check the vendor advisory for mitigations.
References
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