Atlassian Jira - Security Ticks

Exploitation attempts against critical Atlassian flaw have begun (CVE-2026-21589)

Atlassian, Atlassian Confluence, Atlassian Jira, CVE, Don't miss, exploit, Hot stuff, News, Previdian, vulnerability, WatchTowr / SecurityTicks

Exploitation attempts against critical Atlassian flaw have begun (CVE-2026-21589) 2026-10-07 at 17:21 By Zeljka Zorz One day after Atlassian released patches fixing a critical arbitrary file access vulnerability (CVE-2026-21589) in its self-managed Data Center products, and a few hours after watchTowr researchers published a technical rundown of the flaw, attackers have been spotted attempting to […]

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Phishers sneak through using GitHub and Jira’s own mail delivery infrastructure

Phishers sneak through using GitHub and Jira’s own mail delivery infrastructure 2026-04-09 at 08:27 By Sinisa Markovic Attackers are abusing the notification systems of SaaS platforms like GitHub and Jira to send phishing and spam emails, Cisco Talos researchers are warning. “Because the emails are dispatched from the platform’s own infrastructure, they satisfy all standard […]