CVE-2026-12143: Atlassian RCE (Remote Code Execution) form-data Dependency in Crowd Data Center
This Atlassian advisory covers CVE-2026-12143 in Crowd Data Center and Server.
Key facts
- Vendor rating
- High, CVSS 8.7
- CISA KEV
- Not listed (catalogue checked )
- Affected
- Crowd Data Center and Server: 7.2.0 to 7.2.2; Crowd Data Center and Server: 7.1.0 to 7.1.5; Crowd Data Center and Server: 7.0.0 to 7.0.2 and 3 more below
- Fixed in
- Crowd Data Center and Server: 7.2.3 recommended Data Center Only
- Source published
- Listed by VulniPulse
Compiled by VulniPulse from the linked sources. How records are collected and checked.
Affected products & platforms
Description
RCE (Remote Code Execution) form-data Dependency in Crowd Data Center. Affected: Crowd Data Center and Server.
Listed in Atlassian's Security Bulletin of September 15 2026.
Text from the source record.
- Crowd Data Center and Server: 7.2.0 to 7.2.2
- Crowd Data Center and Server: 7.1.0 to 7.1.5
- Crowd Data Center and Server: 7.0.0 to 7.0.2
- Crowd Data Center and Server: 6.3.0 to 6.3.6
- Crowd Data Center and Server: 6.2.0 to 6.2.6
- Crowd Data Center and Server: 6.1.0 to 6.1.7
Official advisory · high-confidence parse· fetched ·verify at source
How to fix CVE-2026-12143
Upgrade to a fixed release named by Atlassian:
- Crowd Data Center and Server: 7.2.3 recommended Data Center Only
Vendor guidance
- Upgrade to a fixed version listed by Atlassian: Crowd Data Center and Server: 7.2.3 recommended Data Center Only.
CVE-2026-12143 in other vendors' advisories
- Red Hat: CVE-2026-12143, high severity, fixed in RHSA-2026:33160
- Splunk: SVD-2026-1012
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Atlassian advisories, September 2026All Atlassian advisories
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