CVE-2023-38646: Atlassian Confluence Data Center RCE
Summary
Atlassian Confluence Data Center allows unauthenticated remote code execution via crafted requests to the setup action.
Why It Matters
CRITICAL severity with CVSS 10 ；affects Atlassian Confluence Data Center 8.0.0 to 8.0.4, Confluence 8.1.0 to 8.1.3, Confluence 8.2.0 to 8.2.2 and more.
Current Status
- Vulnerability status: Not listed in CISA KEV
- Last intelligence update: 2026-10-27 · source: NVD
Entity Activity Timeline
- 2023-08-30 — NVD publication / disclosure
- 2026-10-27 — Intelligence record updated（NVD sync）
Severity
CRITICAL
CVSS Score: 10
AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H
Source Attribution
Source: NVD · Updated: 2026-10-27T00:00:00.000 · Confidence: high
Impact
Based on CVSS vector: AV:N/AC:L/PR:N/UI:N/S:C/C:H/I:H/A:H — assess confidentiality, integrity, and availability impact via the official vector documentation.
Affected Software
- Atlassian Confluence Data Center 8.0.0 to 8.0.4 (Unknown)
- Confluence 8.1.0 to 8.1.3 (Unknown)
- Confluence 8.2.0 to 8.2.2 (Unknown)
- Confluence 8.3.0 to 8.3.2 (Unknown)
- Confluence 8.4.0 to 8.4.1 (Unknown)
- Confluence 8.5.0 to 8.5.1 (Unknown)
Fix
Upgrade affected software to the fixed version identified above. Apply vendor patches and monitor advisories before exposed systems go unpatched.
Sources & Evidence
Export threat intelligence
Download an OASIS STIX 2.1 threat-intelligence bundle (JSON) for MISP / OpenCTI / TAXII import
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- Timeline — events in chronological order.
- Related Entities — CVE, threat actor, campaign, malware links.
- Sources — NVD, CISA KEV, MITRE ATT&CK, vendor advisories.
- Notes — your own observations and working hypotheses.
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