Atlassian · Multiple Products
CVE-2026-21589
Atlassian Multiple Products Files or Directories Accessible to External Parties Vulnerability
Что это
This is a vulnerability in Bitbucket Data Center, Confluence Data Center, Jira Service Management Data Center, Jira Software Data Center, Bamboo Data Center. Crowd Data Center, Crucible and Fisheye. This Arbitrary File Access vulnerability allows an unauthenticated attacker to access specific files within the web application root directory in affected versions. Exploitation requires prior knowledge of the target file's exact name and path; this vulnerability does not allow attackers to enumerate or list directory contents. In some configurations, there may be some sensitive files that make this highly severe. This vulnerability allows an unauthenticated remote attacker to access specific files within the web application root directory in affected versions. The vulnerability must be addressed for affected versions of: -- Bitbucket Data Center, introduced in version >= 4.6.0, fix versions: 9.4.26, 10.2.8, 10.5.1 -- Confluence Data Center, introduced in version >= 5.10.0, fix versions 9.2.26, 10.2.19 -- Crowd Data Center, introduced in version >= 2.11.0, fix versions 6.3.7, 7.0.3, 7.1.7, 7.2.4 -- Jira Software Data Center, introduced in version >= 7.1.0, fix versions 9.12.40, 10.3.26, 11.3.12 -- Jira Service Management Data Center, introduced in version >= 3.1.0, fix versions 5.12.40, 10.3.26, 11.3.12 -- Bamboo Data Center >= 7.0.1, fix versions 10.2.24, 12.1.12 -- Crucible, fix versions 4.9.15 -- Fisheye, fix version 4.9.15 -- Exploitation requires prior knowledge of the target file's exact name and path. The vulnerability does not include the capability to enumerate or list directory contents.
CISA: 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.
Что делать
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.
Срок для федеральных ведомств США: 18 октября 2026 г.
- Добавлена в список CISA
- 15 октября 2026 г.
- Опубликована
- 5 октября 2026 г.
- Серьёзность
- Критическая 9,3 CVSS 4.0
- Вероятность атак в ближайшие 30 дней (EPSS)
- 99,5% в верхних 0,1% всех известных уязвимостей
- Тип слабости
- CWE-552
- Подробнее
- NVD · CVE.org · CISA
Все ссылки (8)
- https://jira.atlassian.com/browse/BAM-26567
- https://jira.atlassian.com/browse/BSERV-20604
- https://jira.atlassian.com/browse/CONFSERVER-104488
- https://jira.atlassian.com/browse/CRUC-8741
- https://jira.atlassian.com/browse/CWD-6610
- https://jira.atlassian.com/browse/FE-7583
- https://jira.atlassian.com/browse/JRASERVER-79546
- https://jira.atlassian.com/browse/JSDSERVER-16809
Другие эксплуатируемые уязвимости Atlassian
| Добавлено | Уязвимость | Продукт | Серьёзность | Вероятность атаки |
|---|---|---|---|---|
| 12 нояб. 2024 г. | Path Traversal | Jira Server and Data Center | Средняя 5,3 | >99,9% |
| 24 янв. 2024 г. | Template Injection | Confluence Data Center and Server | Критическая 10,0 | >99,9% |
| 7 нояб. 2023 г. | Improper Authorization | Confluence Data Center and Server | Критическая 10,0 | >99,9% |
| 5 окт. 2023 г. | Broken Access Control | Confluence Data Center and Server | Критическая 10,0 | 99,2% |
| 30 сент. 2022 г. | Command Injection | Bitbucket Server and Data Center | Высокий 8,8 | 99,1% |
| 29 июл. 2022 г. | Questions For Confluence App Hard-coded Credentials | Confluence | Критическая 9,8 | 98% |
| 2 июн. 2022 г. | Confluence Server and Data Center Remote Code Execution | Confluence Server/Data Center | Критическая 9,8 | >99,9% |
| 28 мар. 2022 г. | Pre-Authorization Arbitrary File Read | Confluence Server | Средняя 5,3 | 99,9% |
Источники: Known Exploited Vulnerabilities (CISA, общественное достояние), CVE records (cve.org) и EPSS (FIRST). Вероятность атаки — оценка EPSS того, что кто-то попытается использовать уязвимость в ближайшие 30 дней.