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 Atlassian warns of critical file-access flaw in Jira, Confluence

Atlassian is warning customers of a critical vulnerability, tracked as CVE-2026-21589, that can be exploited for arbitrary file-access in multiple self-hosted Data Center products, including Confluence, Jira, and Bitbucket. [...]

https://www.bleepingcomputer.com/news/security/atlassian-warns-of-critical-file-access-flaw-in-jira-confluence/
BleepingComputer Atlassian warns of critical file-access flaw in Jira, Confluence Atlassian is warning customers of a critical vulnerability, tracked as CVE-2026-21589, that can be exploited for arbitrary file-access in multiple self-hosted Data Center products, including Confluence, Jira, and Bitbucket.
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