Patch Sonar

Zero-days under active attack, explained in plain English

Atlassian

14 Atlassian flaws are on CISA's list of vulnerabilities attackers have used, 1 of them added in 2026. CISA says 8 are known to be used by ransomware. The latest was added Oct 15, 2026.

14on CISA's list, all time
1added in 2026
1in the last 90 days
8used by ransomware
3zero-days, all time

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Exploited flaws added each year

Most-hit products

ProductExploited flawsMost recent
Confluence Data Center and Server3Jan 24, 2024
Jira Server and Data Center2Nov 12, 2024
Confluence Server and Data Center2Nov 3, 2021
Multiple Products1Oct 15, 2026
Bitbucket Server and Data Center1Sep 30, 2022
Confluence1Jul 29, 2022
Confluence Server/Data Center1Jun 2, 2022
Confluence Server1Mar 28, 2022
Crowd and Crowd Data Center1Nov 3, 2021
Confluence Server and Data Server1Nov 3, 2021

Latest Atlassian flaws

Counts come from CISA's Known Exploited Vulnerabilities catalog, which lists flaws with reliable evidence of real attacks. A higher count often reflects how widely a vendor's products are used and targeted, not only how secure they are.