Section
Research
Threat intelligence and technical research from vendor labs, coordination centers and independent researchers.
4 matching records, 1 with confirmed exploitation.
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CVE-2026-21589: Critical unauthenticated arbitrary file access in Atlassian products
Overview On October 5, 2026, Atlassian published a security advisory for CVE-2026-21589 , a critical arbitrary file access vulnerability affecting eight products: Bitbucket Data Center, Confluence Data Center, Jira Service…
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You Won’t Hear About These, Even In Myths (Atlassian Jira, Confluence (and more) Pre-Auth Arbitrary File Read CVE-2026-21589)
Welcome back to yet another episode of "security was taken seriously". Being who we are (and constantly being exposed to what we see…), we recognize we have been doomed to eternal damnation as we keep on watching security best…
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Atlassian Arbitrary File Access Vulnerability
What is the Attack? CVE-2026-21589 is a critical arbitrary file access vulnerability affecting multiple Atlassian Data Center and Server products. It allows an unauthenticated remote attacker to access specific files within an…
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Scans for Atlassian vulnerablity (CVE-2026-21589), (Wed, Oct 7th)
On October 5th, Atlassian published patches&#;x26;#;xc2;&#;x26;#;xa0;for multiple products to fix an "Arbitrary File Access" vulnerability &#;x26;#;x5b; CVE-2026-21589 &#;x26;#;x5d;. An attacker can read arbitrary files in the…
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