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 Hackers exploit critical Atlassian flaw after public PoC release

A critical vulnerability (CVE-2026-21589) affecting multiple Atlassian product families, including Jira, Confluence, and Bitbucket, is being exploited in attacks that do not require authentication. [...]

https://www.bleepingcomputer.com/news/security/hackers-exploit-critical-atlassian-flaw-after-public-poc-release/
BleepingComputer Hackers exploit critical Atlassian flaw after public PoC release A critical vulnerability (CVE-2026-21589) affecting multiple Atlassian product families, including Jira, Confluence, and Bitbucket, is being exploited in attacks that do not require authentication.
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