Atlassian Jira vulnerabilities and fixes

CVEs that mention Atlassian Jira, ranked by priority. 4 tracked.

Atlassian Jira has 4 tracked vulnerabilities, 0 critical and 1 exploited in the wild (CISA KEV). A fixed release or vendor patch exists for 2. Most recent: 2026-10-24. Highest priority: CVE-2026-21589 (score 88/100).

• CVE-2026-21589 HIGH 7.5 EXPLOITED UPGRADE UPGRADE Atlassian Multiple Products Files or Directories Accessible to External Parties Vulnerability
• CVE-2026-73498 HIGH 7.7 MCP Atlassian is a Model Context Protocol (MCP) server for Atlassian products (Confluence and Jira)
• CVE-2026-115975 HIGH 7.1 Broken access control in JiraController in Cervantes version v1.3-beta could allow an attacker to create, edit
• CVE-2026-19369 MEDIUM 5.3 A vulnerability was found in KS-GEN-AI jira-mcp-server 0.2.0

FAQ

How do I fix Atlassian Jira vulnerabilities?

Open the CVE for your version, check the affected range, then follow the listed action: upgrade to the fixed release, or downgrade or mitigate if no fix exists yet. Commands for each OS are shown on every CVE page.

Is Atlassian Jira being exploited right now?

Yes: 1 Atlassian Jira CVE is on the CISA Known Exploited Vulnerabilities list, so patch it first.

Which Atlassian Jira CVE should I patch first?

CVE-2026-21589 currently ranks highest (88/100): Atlassian Multiple Products Files or Directories Accessible to External Parties Vulnerability.

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