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

By Bill Toulas · BleepingComputer · Tuesday, 6 October 2026 at 17:34 (1h ago) · Original article ↗

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

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