CRITICALVulnerability
Global

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

·Source: BleepingComputer

Updated:

Executive Summary

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. [...]

Analysis

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. [...]

Indicators of Compromise (1)

CVE (1)
CVE-2026-21589
NVDMITRE CVE
Source Attribution

Originally published by BleepingComputer on Oct 6, 2026.

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