CVE-2026-21589：Atlassian Multiple Products Files or Directories Accessible to External Parties Vulnerability
Multiple Atlassian products (Bitbucket Data Center ,Confluence Data Center, Jira Service Management Data Center, Jira Software Data Center, Bamboo Data Center, Crowd Data Center, Crucible and Fisheye) contain a files or directories accessible to external parties vulnerability which could allow an unauthenticated attacker to access specific files within the web application root directory in affected versions.
漏洞信息
- CVE 编号：CVE-2026-21589
- 厂商 / 产品：Atlassian / Multiple Products
- 加入 KEV 时间：2026-10-15
- 修复期限：2026-10-18
- 勒索软件利用：暂未发现
处置建议
Apply mitigations in accordance with vendor instructions, ensuring compliance with CISA’s BOD 26-04 Prioritizing Security Updates Based on Risk (see URL in Notes) guidance and CISA’s “Forensics Triage Requirements” (see URL in Notes). Follow applicable BOD 26-04 guidance for cloud services or discontinue use of the product if mitigations are unavailable. Stakeholders are responsible for evaluating each asset's internet exposure and ensuring adherence to BOD 26-04 patching guidelines.
弱点类型
CWE-552
参考链接
该漏洞已被 CISA 确认在野利用，请优先处置。