Confluence

Roundup of Atlassian security advisories published in July 2026.

Multiple vulnerabilities exist in Atlassian products including Bamboo, Bitbucket, Confluence, Crucible, Fisheye, and Jira which could lead to arbitrary code execution, denial of service, information disclosure, cross-site scripting, and security bypass.

CVE-2026-41103 describes an incorrect implementation of the authentication algorithm in Microsoft SSO Plugin for Jira & Confluence, allowing an unauthorized attacker to elevate privileges over a network.

Multiple vulnerabilities in Atlassian Bamboo, Bitbucket, Confluence, Jira, and Jira Service Management allow attackers to execute arbitrary code, bypass security measures, manipulate data, disclose information, or perform cross-site scripting attacks.

This brief details the detection of DNS-based Kerberos coercion attacks, where adversaries inject marshaled credential structures into DNS records to spoof SPNs and redirect authentication, as seen in CVE-2025-33073, using Suricata and Sysmon event ID 22.