Report
Atlassian warns of critical file-access flaw in self-hosted Jira, Confluence and Bitbucket
BleepingComputer reports that the flaw, tracked as CVE-2026-21589, can be exploited for arbitrary file access.
TLDR
BleepingComputer reports that Atlassian is warning customers about CVE-2026-21589, a critical vulnerability in multiple self-hosted Data Center products, including Jira, Confluence and Bitbucket. The flaw can be exploited for arbitrary file access.
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