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CVE-2026-21589UNKNOWNMITRENVD대응게시일: 2026. 10. 05.수정일: 2026. 10. 06.CNA: security@atlassian.comAwaiting Analysis

h3. Summary This is a vulnerability in Bitbucket Data Center, Confluence Data Center, Jira Service Management Data Center, Jira Software Da

위협 신호 · CVSS · EPSS · KEV

정기 패치· 높은 악용 신호 없음
CVSS
—unknown

이론적 심각도 점수

EPSS
—

예측 데이터 없음

KEV
미등재

실측 악용 기록 없음

권장 대응 기한60일 이내CISA SSVC 기준

계획된 패치 주기 내 조치(60일 이내)

외부 노출· KEV 미등재 · 자동화 어려움 · 부분 영향 · 외부 노출

CVSS 벡터 · 메트릭

버전별 점수
CVSS 4.09.3CRITICAL· 악용성숙도 NOT_DEFINED

CVSS 벡터 정보 없음

약점 (CWE)

상세 설명

h3. Summary

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.  

h3. Context

This vulnerability allows an unauthenticated remote attacker to access specific files within the web application root directory in affected versions.

h3. Details:

  • 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, 7.1.1, 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.

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