CVE-2021-26086

CVE

Threat entity extracted from intelligence sources

Frequency

occurrences

First Seen

October 6, 2026

Last Seen

October 6, 2026

API

Exploited in Wild

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Ransomware Use

—

Public Exploits

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Attack Vector

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Vulnerability Overview

Exploitation Activity

Exploitation Intelligence

Critical Path Traversal Vulnerability in Atlassian Data Center Products70.5

On October 5, 2026, Atlassian disclosed CVE-2026-21589, a critical path traversal vulnerability with a CVSS score of 9.3, affecting eight self-hosted Data Center products including Jira, Confluence, and Bitbucket. This flaw allows unauthenticated attackers to read specific files from the web applica...