Affected versions of Atlassian Jira Server and Data Center allow unauthenticated remote…
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- None
- Attack complexity
- Low
- Impact type
- —
- Confidentiality · integrity · availability
- None · None · High
- Fix status
- Fixed
Attack profile from CVSS 3.1 · CISA ADP. Fix status from CNA.
Summary
Affected versions of Atlassian Jira Server and Data Center allow unauthenticated remote attackers to impact the application's availability via a Denial of Service (DoS) vulnerability in the /rest/gadget/1.0/createdVsResolved/generate endpoint. The affected versions are before version 8.16.0.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- None
- Automatable
- Yes
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
| Vendor | Product | Affected versions | Fixed in | Status | Source |
|---|---|---|---|---|---|
| Atlassian | Jira Server | before 8.16.0 | 8.16.0 | Patch available | CNA |
| Atlassian | Jira Data Center | before 8.16.0 | 8.16.0 | Patch available | CNA |
Remediation
- Fix · CNA Jira Server (Atlassian) Fixed in 8.16.0
- Fix · CNA Jira Data Center (Atlassian) Fixed in 8.16.0
Fixed in the same release
Records fixed by the same vendor advisory or release, as the CNA lists them.
- Release ·
Atlassian Jira Data Center, Jira Server 8.16.0
2 records Highest priority Priority MEDIUM 1 MEDIUM, 1 LOW
Other records, highest priority first
- TI-2021-16513 Cross-site request forgery in Atlassian Jira ServerPriority LOW 21
Timeline
- 2026-10-02 Threatist record created from CVE-2021-39123
- 2026-10-03 Alias added: GHSA-5v59-rqmv-2rcp
References
More Atlassian Data Center vulnerabilities
- TI-2020-18587 Incorrect authorization in Atlassian Jira Server CVSS 3.1MEDIUM 5.3
- TI-2020-11107 Information disclosure in Atlassian Jira Server CVSS 3.1MEDIUM 5.3
- TI-2021-16503 Insufficient session expiration in Atlassian Jira Server CVSS 3.1HIGH 7.5
- TI-2017-13320 Code injection in Atlassian Jira Server CVSS 3.1HIGH 8.8
- TI-2020-17687 Path traversal in Atlassian Jira Server CVSS 3.1MEDIUM 5.3
- TI-2021-19709 Affected versions of Atlassian Jira Server and Data Center allow remote attackers with… CVSS 3.1HIGH 7.2
Sources
- CVE-2021-39123 · CVE Program
- CVE-2021-39123 · NVD
- FIRST EPSS
- GHSA-5v59-rqmv-2rcp · GitHub Advisory Database · CC BY 4.0
This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences