Security
Atlassian warns of critical file-access flaw in Jira, Confluence
BleepingComputer·October 6, 2026·1 min read
Atlassian warned 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. The company urged administrators to apply patches immediately to prevent potential data breaches.
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