Known exploited vulnerabilities
Atlassian vulnerabilities attackers have used
Every Atlassian vulnerability in CISA's Known Exploited Vulnerabilities catalog, newest first, with the federal due date and whether it fed ransomware campaigns.
The short answer
CISA lists 14 Atlassian vulnerabilities as exploited in the wild, 1 of them added in the last 12 months and 8 used in ransomware campaigns. The most recent is CVE-2026-21589, added Oct 15, 2026. Confluence Data Center and Server has the most entries (3).
- In KEV, all time
- 14
- Added, last 12 months
- 1
- Used in ransomware
- 8
- New CVEs this week
- 0
By product
Confluence Data Center and Server (3), Confluence Server and Data Center (2), Jira Server and Data Center (2), Bitbucket Server and Data Center (1), Confluence (1), Confluence Server (1), Confluence Server and Data Server (1), Confluence Server/Data Center (1), Crowd and Crowd Data Center (1), Multiple Products (1).
Every Atlassian entry in CISA KEV
CVE-2026-21589
Added · dueAtlassian Multiple Products Files or Directories Accessible to External Parties Vulnerability
Multiple Atlassian products (Bitbucket Data Center ,Confluence Data Center, Jira Service Management Data Center, Jira Software Data Center, Bamboo Data Center, Crowd Data Center, Crucible and Fisheye) contain a files or directories…
CVE-2021-26086
Added · dueAtlassian Jira Server and Data Center Path Traversal Vulnerability
Atlassian Jira Server and Data Center contain a path traversal vulnerability that allows a remote attacker to read particular files in the /WEB-INF/web.xml endpoint.
Atlassian Confluence Data Center and Server Template Injection Vulnerability
Atlassian Confluence Data Center and Server contain an unauthenticated OGNL template injection vulnerability that can lead to remote code execution.
Atlassian Confluence Data Center and Server Improper Authorization Vulnerability
Atlassian Confluence Data Center and Server contain an improper authorization vulnerability that can result in significant data loss when exploited by an unauthenticated attacker. There is no impact on confidentiality since the attacker…
Atlassian Confluence Data Center and Server Broken Access Control Vulnerability
Atlassian Confluence Data Center and Server contains a broken access control vulnerability that allows an attacker to create unauthorized Confluence administrator accounts and access Confluence.
CVE-2022-36804
Added · dueAtlassian Bitbucket Server and Data Center Command Injection Vulnerability
Multiple API endpoints of Atlassian Bitbucket Server and Data Center contain a command injection vulnerability where an attacker with access to a public Bitbucket repository, or with read permissions to a private one, can execute code by…
CVE-2022-26138
Added · dueAtlassian Questions For Confluence App Hard-coded Credentials Vulnerability
Atlassian Questions For Confluence App has hard-coded credentials, exposing the username and password in plaintext. A remote unauthenticated attacker can use these credentials to log into Confluence and access all content accessible to…
Atlassian Confluence Server and Data Center Remote Code Execution Vulnerability
Atlassian Confluence Server and Data Center contain a remote code execution vulnerability that allows for an unauthenticated attacker to perform remote code execution.
Atlassian Confluence Server Pre-Authorization Arbitrary File Read Vulnerability
Affected versions of Atlassian Confluence Server allow remote attackers to view restricted resources via a pre-authorization arbitrary file read vulnerability in the /s/ endpoint.
CVE-2019-11581
Added · dueAtlassian Jira Server and Data Center Server-Side Template Injection Vulnerability
Atlassian Jira Server and Data Center contain a server-side template injection vulnerability which can allow for remote code execution.
Atlassian Confluence Server and Data Center Object-Graph Navigation Language (OGNL) Injection Vulnerability
Atlassian Confluence Server and Data Server contain an Object-Graph Navigation Language (OGNL) injection vulnerability that may allow an unauthenticated attacker to execute code.
CVE-2019-3398
Added · dueAtlassian Confluence Server and Data Center Path Traversal Vulnerability
Atlassian Confluence Server and Data Center contain a path traversal vulnerability in the downloadallattachments resource that may allow a privileged, remote attacker to write files. Exploitation can lead to remote code execution.
Atlassian Confluence Server and Data Center Server-Side Template Injection Vulnerability
Atlassian Confluence Server and Data Center contain a server-side template injection vulnerability that may allow an attacker to achieve path traversal and remote code execution.
Atlassian Crowd and Crowd Data Center Remote Code Execution Vulnerability
Atlassian Crowd and Crowd Data Center contain a remote code execution vulnerability resulting from a pdkinstall development plugin being incorrectly enabled in release builds.
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