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

Reported by BleepingComputer (Bill Toulas)

Summary by Cyber Security News6 Oct 2026, 19:34 CET

About this summary. This is a short excerpt from the description that BleepingComputer published with its article. Cyber Security News did not report or verify the underlying story. Read the original: https://www.bleepingcomputer.com/news/security/atlassian-warns-of-critical-file-access-flaw-in-jira-confluence/

Atlassian warns of critical file-access flaw in Jira, Confluence — Image: BleepingComputer

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.

Read the full article at BleepingComputer →

Source attribution: headline and facts are from BleepingComputer (bleepingcomputer.com). Summary method: excerpt of the source description. See our source attribution policy.