CVE-2021-26084
Atlassian Confluence Server and Data Center Object-Graph Navigation Language (OGNL) Injection Vulnerability
MITRE ATT&CK techniques
How this vulnerability maps to adversary behaviour, from the Center for Threat-Informed Defense's public CVE→ATT&CK mappings. Use it to check whether your detections already cover the technique.
Summary
Atlassian Confluence Server and Data Server contain an Object-Graph Navigation Language (OGNL) injection vulnerability that may allow an unauthenticated attacker to execute code.
Affected software
Vendor: Atlassian · Product: Confluence Server and Data Center
Weakness types (CWE):
What to do
This vulnerability appears in CISA's Known Exploited Vulnerabilities catalog, meaning it is being exploited in the wild. Prioritize patching affected systems and verify exposure across your estate.
Related vulnerabilities in Atlassian
| CVE | Name | EPSS | Exploited |
|---|---|---|---|
| CVE-2023-22518 | Atlassian Confluence Data Center and Server Improper Authorization Vulnerability | 100.0% | Yes |
| CVE-2022-26134 | Atlassian Confluence Server and Data Center Remote Code Execution Vulnerability | 100.0% | Yes |
| CVE-2021-26086 | Atlassian Jira Server and Data Center Path Traversal Vulnerability | 100.0% | Yes |
| CVE-2023-22527 | Atlassian Confluence Data Center and Server Template Injection Vulnerability | 100.0% | Yes |
| CVE-2021-26085 | Atlassian Confluence Server Pre-Authorization Arbitrary File Read Vulnerability | 99.9% | Yes |
| CVE-2019-3396 | Atlassian Confluence Server and Data Center Server-Side Template Injection Vulne | 99.9% | Yes |
| CVE-2023-22515 | Atlassian Confluence Data Center and Server Broken Access Control Vulnerability | 99.2% | Yes |
| CVE-2022-36804 | Atlassian Bitbucket Server and Data Center Command Injection Vulnerability | 99.1% | Yes |
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