Vulnerability-Lookup

BDU:2026-16016 (CVE-2026-21589)

Vulnerability from fstec – Published: 2026-10-07 – Updated: 2026-10-07 – View on bdu.fstec.ru Exploit publicly available Fixed

Title

Уязвимость программных продуктов Atlassian Data Center, связанная с использованием файлов и каталогов, доступных внешним сторонам, позволяющая нарушителю получить несанкционированный доступ к защищаемой информации

Summary

Уязвимость программных продуктов Atlassian Data Center связана с использованием файлов и каталогов, доступных внешним сторонам. Эксплуатация уязвимости может позволить нарушителю, действующему удаленно, получить несанкционированный доступ к защищаемой информации

Severity

7.8 (High) CVSS 2.0


                      
                        AV:N/AC:L/Au:N/C:C/I:N/A:N

7.5 (High) CVSS 3.1


                      
                        CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N

9.3 (Critical) CVSS 4.0


                      
                        CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:H/SI:H/SA:H

Class

Architecture vulnerability

Status

Confirmed by the vendor

Exploitation

Information gathering

Incidents

Being clarified

Remediation

Software update

CWE

CWE-552 - Файлы и каталоги, доступные внешним сторонам

Aliases

CVE-2026-21589

References

9 references

URL
https://github.com/tc4dy/CVE-2026-21589-PoC-Exploit
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

Impacted products

8 products from 1 vendor

Vendors

Atlassian

Products

Bamboo Data Center, Bitbucket Data Center, Confluence Data Center, Crowd Data Center, Crucible Data Center, Fisheye Data Center, Jira Service Management Data Center, Jira Software Data Center

Versions

до 10.2.24 (Bamboo Data Center), до 12.1.12 (Bamboo Data Center), до 10.2.8 (Bitbucket Data Center), до 10.5.1 (Bitbucket Data Center), до 9.4.26 (Bitbucket Data Center), до 10.2.19 (Confluence Data Center), до 9.2.26 (Confluence Data Center), до 7.2.4 (Crowd Data Center), до 7.1.7 (Crowd Data Center), до 7.0.3 (Crowd Data Center), до 6.3.7 (Crowd Data Center), до 4.9.15 (Crucible Data Center), до 4.9.15 (Fisheye Data Center), до 11.3.12 (Jira Service Management Data Center), до 10.3.26 (Jira Service Management Data Center), до 5.12.40 (Jira Service Management Data Center), до 11.3.12 (Jira Software Data Center), до 10.3.26 (Jira Software Data Center), до 9.12.40 (Jira Software Data Center)

Product types

Application software, Appliance software

Mitigations

Использование рекомендаций производителя: 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

JSON

To clipboard

{
  "CVSS 2.0": "AV:N/AC:L/Au:N/C:C/I:N/A:N",
  "CVSS 3.0": "AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
  "CVSS 4.0": "AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:H/SI:H/SA:H",
  "remediation_\u0418\u0434\u0435\u043d\u0442\u0438\u0444\u0438\u043a\u0430\u0442\u043e\u0440": null,
  "remediation_\u041d\u0430\u0438\u043c\u0435\u043d\u043e\u0432\u0430\u043d\u0438\u0435": null,
  "\u0412\u0435\u043d\u0434\u043e\u0440 \u041f\u041e": "Atlassian",
  "\u0412\u0435\u0440\u0441\u0438\u044f \u041f\u041e": "\u0434\u043e 10.2.24 (Bamboo Data Center), \u0434\u043e 12.1.12 (Bamboo Data Center), \u0434\u043e 10.2.8 (Bitbucket Data Center), \u0434\u043e 10.5.1 (Bitbucket Data Center), \u0434\u043e 9.4.26 (Bitbucket Data Center), \u0434\u043e 10.2.19 (Confluence Data Center), \u0434\u043e 9.2.26 (Confluence Data Center), \u0434\u043e 7.2.4 (Crowd Data Center), \u0434\u043e 7.1.7 (Crowd Data Center), \u0434\u043e 7.0.3 (Crowd Data Center), \u0434\u043e 6.3.7 (Crowd Data Center), \u0434\u043e 4.9.15 (Crucible Data Center), \u0434\u043e 4.9.15 (Fisheye Data Center), \u0434\u043e 11.3.12 (Jira Service Management Data Center), \u0434\u043e 10.3.26 (Jira Service Management Data Center), \u0434\u043e 5.12.40 (Jira Service Management Data Center), \u0434\u043e 11.3.12 (Jira Software Data Center), \u0434\u043e 10.3.26 (Jira Software Data Center), \u0434\u043e 9.12.40 (Jira Software Data Center)",
  "\u0412\u043e\u0437\u043c\u043e\u0436\u043d\u044b\u0435 \u043c\u0435\u0440\u044b \u043f\u043e \u0443\u0441\u0442\u0440\u0430\u043d\u0435\u043d\u0438\u044e": "\u0418\u0441\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u043d\u0438\u0435 \u0440\u0435\u043a\u043e\u043c\u0435\u043d\u0434\u0430\u0446\u0438\u0439 \u043f\u0440\u043e\u0438\u0437\u0432\u043e\u0434\u0438\u0442\u0435\u043b\u044f:\nhttps://jira.atlassian.com/browse/BAM-26567\nhttps://jira.atlassian.com/browse/BSERV-20604\nhttps://jira.atlassian.com/browse/CONFSERVER-104488\nhttps://jira.atlassian.com/browse/CRUC-8741\nhttps://jira.atlassian.com/browse/CWD-6610\nhttps://jira.atlassian.com/browse/FE-7583\nhttps://jira.atlassian.com/browse/JRASERVER-79546\nhttps://jira.atlassian.com/browse/JSDSERVER-16809",
  "\u0414\u0430\u0442\u0430 \u0432\u044b\u044f\u0432\u043b\u0435\u043d\u0438\u044f": "02.10.2026",
  "\u0414\u0430\u0442\u0430 \u043f\u043e\u0441\u043b\u0435\u0434\u043d\u0435\u0433\u043e \u043e\u0431\u043d\u043e\u0432\u043b\u0435\u043d\u0438\u044f": "07.10.2026",
  "\u0414\u0430\u0442\u0430 \u043f\u0443\u0431\u043b\u0438\u043a\u0430\u0446\u0438\u0438": "07.10.2026",
  "\u0418\u0434\u0435\u043d\u0442\u0438\u0444\u0438\u043a\u0430\u0442\u043e\u0440": "BDU:2026-16016",
  "\u0418\u0434\u0435\u043d\u0442\u0438\u0444\u0438\u043a\u0430\u0442\u043e\u0440\u044b \u0434\u0440\u0443\u0433\u0438\u0445 \u0441\u0438\u0441\u0442\u0435\u043c \u043e\u043f\u0438\u0441\u0430\u043d\u0438\u0439 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438": "CVE-2026-21589",
  "\u0418\u043d\u0444\u043e\u0440\u043c\u0430\u0446\u0438\u044f \u043e\u0431 \u0443\u0441\u0442\u0440\u0430\u043d\u0435\u043d\u0438\u0438": "\u0423\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u044c \u0443\u0441\u0442\u0440\u0430\u043d\u0435\u043d\u0430",
  "\u041a\u043b\u0430\u0441\u0441 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438": "\u0423\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u044c \u0430\u0440\u0445\u0438\u0442\u0435\u043a\u0442\u0443\u0440\u044b",
  "\u041d\u0430\u0437\u0432\u0430\u043d\u0438\u0435 \u041f\u041e": "Bamboo Data Center, Bitbucket Data Center, Confluence Data Center, Crowd Data Center, Crucible Data Center, Fisheye Data Center, Jira Service Management Data Center, Jira Software Data Center",
  "\u041d\u0430\u0438\u043c\u0435\u043d\u043e\u0432\u0430\u043d\u0438\u0435 \u041e\u0421 \u0438 \u0442\u0438\u043f \u0430\u043f\u043f\u0430\u0440\u0430\u0442\u043d\u043e\u0439 \u043f\u043b\u0430\u0442\u0444\u043e\u0440\u043c\u044b": null,
  "\u041d\u0430\u0438\u043c\u0435\u043d\u043e\u0432\u0430\u043d\u0438\u0435 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438": "\u0423\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u044c \u043f\u0440\u043e\u0433\u0440\u0430\u043c\u043c\u043d\u044b\u0445 \u043f\u0440\u043e\u0434\u0443\u043a\u0442\u043e\u0432 Atlassian Data Center, \u0441\u0432\u044f\u0437\u0430\u043d\u043d\u0430\u044f \u0441 \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u043d\u0438\u0435\u043c \u0444\u0430\u0439\u043b\u043e\u0432 \u0438 \u043a\u0430\u0442\u0430\u043b\u043e\u0433\u043e\u0432, \u0434\u043e\u0441\u0442\u0443\u043f\u043d\u044b\u0445 \u0432\u043d\u0435\u0448\u043d\u0438\u043c \u0441\u0442\u043e\u0440\u043e\u043d\u0430\u043c, \u043f\u043e\u0437\u0432\u043e\u043b\u044f\u044e\u0449\u0430\u044f \u043d\u0430\u0440\u0443\u0448\u0438\u0442\u0435\u043b\u044e \u043f\u043e\u043b\u0443\u0447\u0438\u0442\u044c \u043d\u0435\u0441\u0430\u043d\u043a\u0446\u0438\u043e\u043d\u0438\u0440\u043e\u0432\u0430\u043d\u043d\u044b\u0439 \u0434\u043e\u0441\u0442\u0443\u043f \u043a \u0437\u0430\u0449\u0438\u0449\u0430\u0435\u043c\u043e\u0439 \u0438\u043d\u0444\u043e\u0440\u043c\u0430\u0446\u0438\u0438",
  "\u041d\u0430\u043b\u0438\u0447\u0438\u0435 \u044d\u043a\u0441\u043f\u043b\u043e\u0439\u0442\u0430": "\u0421\u0443\u0449\u0435\u0441\u0442\u0432\u0443\u0435\u0442 \u0432 \u043e\u0442\u043a\u0440\u044b\u0442\u043e\u043c \u0434\u043e\u0441\u0442\u0443\u043f\u0435",
  "\u041e\u043f\u0438\u0441\u0430\u043d\u0438\u0435 \u043e\u0448\u0438\u0431\u043a\u0438 CWE": "\u0424\u0430\u0439\u043b\u044b \u0438 \u043a\u0430\u0442\u0430\u043b\u043e\u0433\u0438, \u0434\u043e\u0441\u0442\u0443\u043f\u043d\u044b\u0435 \u0432\u043d\u0435\u0448\u043d\u0438\u043c \u0441\u0442\u043e\u0440\u043e\u043d\u0430\u043c (CWE-552)",
  "\u041e\u043f\u0438\u0441\u0430\u043d\u0438\u0435 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438": "\u0423\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u044c \u043f\u0440\u043e\u0433\u0440\u0430\u043c\u043c\u043d\u044b\u0445 \u043f\u0440\u043e\u0434\u0443\u043a\u0442\u043e\u0432 Atlassian Data Center \u0441\u0432\u044f\u0437\u0430\u043d\u0430 \u0441 \u0438\u0441\u043f\u043e\u043b\u044c\u0437\u043e\u0432\u0430\u043d\u0438\u0435\u043c \u0444\u0430\u0439\u043b\u043e\u0432 \u0438 \u043a\u0430\u0442\u0430\u043b\u043e\u0433\u043e\u0432, \u0434\u043e\u0441\u0442\u0443\u043f\u043d\u044b\u0445 \u0432\u043d\u0435\u0448\u043d\u0438\u043c \u0441\u0442\u043e\u0440\u043e\u043d\u0430\u043c. \u042d\u043a\u0441\u043f\u043b\u0443\u0430\u0442\u0430\u0446\u0438\u044f \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438 \u043c\u043e\u0436\u0435\u0442 \u043f\u043e\u0437\u0432\u043e\u043b\u0438\u0442\u044c \u043d\u0430\u0440\u0443\u0448\u0438\u0442\u0435\u043b\u044e, \u0434\u0435\u0439\u0441\u0442\u0432\u0443\u044e\u0449\u0435\u043c\u0443 \u0443\u0434\u0430\u043b\u0435\u043d\u043d\u043e, \u043f\u043e\u043b\u0443\u0447\u0438\u0442\u044c \u043d\u0435\u0441\u0430\u043d\u043a\u0446\u0438\u043e\u043d\u0438\u0440\u043e\u0432\u0430\u043d\u043d\u044b\u0439 \u0434\u043e\u0441\u0442\u0443\u043f \u043a \u0437\u0430\u0449\u0438\u0449\u0430\u0435\u043c\u043e\u0439 \u0438\u043d\u0444\u043e\u0440\u043c\u0430\u0446\u0438\u0438",
  "\u041f\u043e\u0441\u043b\u0435\u0434\u0441\u0442\u0432\u0438\u044f \u044d\u043a\u0441\u043f\u043b\u0443\u0430\u0442\u0430\u0446\u0438\u0438 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438": null,
  "\u041f\u0440\u043e\u0447\u0430\u044f \u0438\u043d\u0444\u043e\u0440\u043c\u0430\u0446\u0438\u044f": null,
  "\u0421\u0432\u044f\u0437\u044c \u0441 \u0438\u043d\u0446\u0438\u0434\u0435\u043d\u0442\u0430\u043c\u0438 \u0418\u0411": "\u0414\u0430\u043d\u043d\u044b\u0435 \u0443\u0442\u043e\u0447\u043d\u044f\u044e\u0442\u0441\u044f",
  "\u0421\u043e\u0441\u0442\u043e\u044f\u043d\u0438\u0435 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438": "\u041e\u043f\u0443\u0431\u043b\u0438\u043a\u043e\u0432\u0430\u043d\u0430",
  "\u0421\u043f\u043e\u0441\u043e\u0431 \u0443\u0441\u0442\u0440\u0430\u043d\u0435\u043d\u0438\u044f": "\u041e\u0431\u043d\u043e\u0432\u043b\u0435\u043d\u0438\u0435 \u043f\u0440\u043e\u0433\u0440\u0430\u043c\u043c\u043d\u043e\u0433\u043e \u043e\u0431\u0435\u0441\u043f\u0435\u0447\u0435\u043d\u0438\u044f",
  "\u0421\u043f\u043e\u0441\u043e\u0431 \u044d\u043a\u0441\u043f\u043b\u0443\u0430\u0442\u0430\u0446\u0438\u0438": "\u041d\u0435\u0441\u0430\u043d\u043a\u0446\u0438\u043e\u043d\u0438\u0440\u043e\u0432\u0430\u043d\u043d\u044b\u0439 \u0441\u0431\u043e\u0440 \u0438\u043d\u0444\u043e\u0440\u043c\u0430\u0446\u0438\u0438",
  "\u0421\u0441\u044b\u043b\u043a\u0438 \u043d\u0430 \u0438\u0441\u0442\u043e\u0447\u043d\u0438\u043a\u0438": "https://github.com/tc4dy/CVE-2026-21589-PoC-Exploit\nhttps://jira.atlassian.com/browse/BAM-26567\nhttps://jira.atlassian.com/browse/BSERV-20604\nhttps://jira.atlassian.com/browse/CONFSERVER-104488\nhttps://jira.atlassian.com/browse/CRUC-8741\nhttps://jira.atlassian.com/browse/CWD-6610\nhttps://jira.atlassian.com/browse/FE-7583\nhttps://jira.atlassian.com/browse/JRASERVER-79546\nhttps://jira.atlassian.com/browse/JSDSERVER-16809",
  "\u0421\u0442\u0430\u0442\u0443\u0441 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438": "\u041f\u043e\u0434\u0442\u0432\u0435\u0440\u0436\u0434\u0435\u043d\u0430 \u043f\u0440\u043e\u0438\u0437\u0432\u043e\u0434\u0438\u0442\u0435\u043b\u0435\u043c",
  "\u0422\u0438\u043f \u041f\u041e": "\u041f\u0440\u0438\u043a\u043b\u0430\u0434\u043d\u043e\u0435 \u041f\u041e \u0438\u043d\u0444\u043e\u0440\u043c\u0430\u0446\u0438\u043e\u043d\u043d\u044b\u0445 \u0441\u0438\u0441\u0442\u0435\u043c, \u041f\u041e \u043f\u0440\u043e\u0433\u0440\u0430\u043c\u043c\u043d\u043e-\u0430\u043f\u043f\u0430\u0440\u0430\u0442\u043d\u043e\u0433\u043e \u0441\u0440\u0435\u0434\u0441\u0442\u0432\u0430",
  "\u0422\u0438\u043f \u043e\u0448\u0438\u0431\u043a\u0438 CWE": "CWE-552",
  "\u0423\u0440\u043e\u0432\u0435\u043d\u044c \u043e\u043f\u0430\u0441\u043d\u043e\u0441\u0442\u0438 \u0443\u044f\u0437\u0432\u0438\u043c\u043e\u0441\u0442\u0438": "\u0412\u044b\u0441\u043e\u043a\u0438\u0439 \u0443\u0440\u043e\u0432\u0435\u043d\u044c \u043e\u043f\u0430\u0441\u043d\u043e\u0441\u0442\u0438 (\u0431\u0430\u0437\u043e\u0432\u0430\u044f \u043e\u0446\u0435\u043d\u043a\u0430 CVSS 2.0 \u0441\u043e\u0441\u0442\u0430\u0432\u043b\u044f\u0435\u0442 7,8)\n\u0412\u044b\u0441\u043e\u043a\u0438\u0439 \u0443\u0440\u043e\u0432\u0435\u043d\u044c \u043e\u043f\u0430\u0441\u043d\u043e\u0441\u0442\u0438 (\u0431\u0430\u0437\u043e\u0432\u0430\u044f \u043e\u0446\u0435\u043d\u043a\u0430 CVSS 3.1 \u0441\u043e\u0441\u0442\u0430\u0432\u043b\u044f\u0435\u0442 7,5)\n\u041a\u0440\u0438\u0442\u0438\u0447\u0435\u0441\u043a\u0438\u0439 \u0443\u0440\u043e\u0432\u0435\u043d\u044c \u043e\u043f\u0430\u0441\u043d\u043e\u0441\u0442\u0438 (\u043e\u0446\u0435\u043d\u043a\u0430 CVSS 4.0 \u0441\u043e\u0441\u0442\u0430\u0432\u043b\u044f\u0435\u0442 9,3)"
}

CVE-2026-21589 (GCVE-0-2026-21589)

Vulnerability from cvelistv5 – Published: 2026-10-05 21:30 – Updated: 2026-10-07 13:04

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. 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.

Severity

9.3 (Critical)


                        
                          CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:H/SI:H/SA:H

SSVC

Exploitation: poc Automatable: no Technical Impact: total

CISA Coordinator · CISA-ADP (v2.0.3)

Decision recorded 2026-10-07 13:04 UTC

CWE

Path Traversal (Arbitrary Read/Write)
CWE-552 - Files or Directories Accessible to External Parties

Assigner

atlassian mitre root Scorecard

References

9 references

URL	Tags
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
https://github.com/watchtowrlabs/watchTowr-vs-Atl…	exploit

Impacted products

8 products

Vendor	Product	Version
Atlassian	Bamboo Data Center	Affected: All other versions Unaffected: Patch version 10.2.24 and later Unaffected: Patch version 12.1.12 and later
Atlassian	Bitbucket Data Center	Affected: All other versions Unaffected: Patch version 10.2.8 and later Unaffected: Patch version 10.5.1 and later Unaffected: Patch version 9.4.26 and later
Atlassian	Confluence Data Center	Affected: All other versions Unaffected: Patch version 10.2.19 and later Unaffected: Patch version 9.2.26 and later
Atlassian	Crowd Data Center	Affected: All other versions Unaffected: Patch version 7.2.4 and later Unaffected: Patch version 7.1.7 and later Unaffected: Patch version 7.0.3 and later Unaffected: Patch version 6.3.7 and later
Atlassian	Crucible Data Center	Affected: All other versions Unaffected: Patch version 4.9.15 and later
Atlassian	Fisheye Data Center	Affected: All other versions Unaffected: Patch version 4.9.15 and later
Atlassian	Jira Service Management Data Center	Affected: All other versions Unaffected: Patch version 11.3.12 and later Unaffected: Patch version 10.3.26 and later Unaffected: Patch version 5.12.40 and later
Atlassian	Jira Software Data Center	Affected: All other versions Unaffected: Patch version 11.3.12 and later Unaffected: Patch version 10.3.26 and later Unaffected: Patch version 9.12.40 and later

Show details on NVD website

JSON

To clipboard

{
  "containers": {
    "adp": [
      {
        "metrics": [
          {
            "other": {
              "content": {
                "id": "CVE-2026-21589",
                "options": [
                  {
                    "Exploitation": "poc"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "total"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-10-07T13:04:54.917548Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "problemTypes": [
          {
            "descriptions": [
              {
                "cweId": "CWE-552",
                "description": "CWE-552 Files or Directories Accessible to External Parties",
                "lang": "en",
                "type": "CWE"
              }
            ]
          }
        ],
        "providerMetadata": {
          "dateUpdated": "2026-10-07T13:04:58.027Z",
          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
        },
        "references": [
          {
            "tags": [
              "exploit"
            ],
            "url": "https://github.com/watchtowrlabs/watchTowr-vs-Atlassian-CVE-2026-21589"
          }
        ],
        "title": "CISA ADP Vulnrichment"
      }
    ],
    "cna": {
      "affected": [
        {
          "product": "Bamboo Data Center",
          "vendor": "Atlassian",
          "versions": [
            {
              "status": "affected",
              "version": "All other versions"
            },
            {
              "status": "unaffected",
              "version": "Patch version 10.2.24 and later"
            },
            {
              "status": "unaffected",
              "version": "Patch version 12.1.12 and later"
            }
          ]
        },
        {
          "product": "Bitbucket Data Center",
          "vendor": "Atlassian",
          "versions": [
            {
              "status": "affected",
              "version": "All other versions"
            },
            {
              "status": "unaffected",
              "version": "Patch version 10.2.8 and later"
            },
            {
              "status": "unaffected",
              "version": "Patch version 10.5.1 and later"
            },
            {
              "status": "unaffected",
              "version": "Patch version 9.4.26 and later"
            }
          ]
        },
        {
          "product": "Confluence Data Center",
          "vendor": "Atlassian",
          "versions": [
            {
              "status": "affected",
              "version": "All other versions"
            },
            {
              "status": "unaffected",
              "version": "Patch version 10.2.19 and later"
            },
            {
              "status": "unaffected",
              "version": "Patch version 9.2.26 and later"
            }
          ]
        },
        {
          "product": "Crowd Data Center",
          "vendor": "Atlassian",
          "versions": [
            {
              "status": "affected",
              "version": "All other versions"
            },
            {
              "status": "unaffected",
              "version": "Patch version 7.2.4 and later"
            },
            {
              "status": "unaffected",
              "version": "Patch version 7.1.7 and later"
            },
            {
              "status": "unaffected",
              "version": "Patch version 7.0.3 and later"
            },
            {
              "status": "unaffected",
              "version": "Patch version 6.3.7 and later"
            }
          ]
        },
        {
          "product": "Crucible Data Center",
          "vendor": "Atlassian",
          "versions": [
            {
              "status": "affected",
              "version": "All other versions"
            },
            {
              "status": "unaffected",
              "version": "Patch version 4.9.15 and later"
            }
          ]
        },
        {
          "product": "Fisheye Data Center",
          "vendor": "Atlassian",
          "versions": [
            {
              "status": "affected",
              "version": "All other versions"
            },
            {
              "status": "unaffected",
              "version": "Patch version 4.9.15 and later"
            }
          ]
        },
        {
          "product": "Jira Service Management Data Center",
          "vendor": "Atlassian",
          "versions": [
            {
              "status": "affected",
              "version": "All other versions"
            },
            {
              "status": "unaffected",
              "version": "Patch version 11.3.12 and later"
            },
            {
              "status": "unaffected",
              "version": "Patch version 10.3.26 and later"
            },
            {
              "status": "unaffected",
              "version": "Patch version 5.12.40 and later"
            }
          ]
        },
        {
          "product": "Jira Software Data Center",
          "vendor": "Atlassian",
          "versions": [
            {
              "status": "affected",
              "version": "All other versions"
            },
            {
              "status": "unaffected",
              "version": "Patch version 11.3.12 and later"
            },
            {
              "status": "unaffected",
              "version": "Patch version 10.3.26 and later"
            },
            {
              "status": "unaffected",
              "version": "Patch version 9.12.40 and later"
            }
          ]
        }
      ],
      "descriptions": [
        {
          "lang": "en",
          "value": "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\u0027s 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 \u003e= 4.6.0, fix versions: 9.4.26, 10.2.8, 10.5.1 -- Confluence Data Center, introduced in version \u003e= 5.10.0, fix versions 9.2.26, 10.2.19 -- Crowd Data Center, introduced in version \u003e= 2.11.0, fix versions 6.3.7, 7.0.3, 7.1.7, 7.2.4 -- Jira Software Data Center, introduced in version \u003e= 7.1.0, fix versions 9.12.40, 10.3.26, 11.3.12 -- Jira Service Management Data Center, introduced in version \u003e= 3.1.0, fix versions 5.12.40, 10.3.26, 11.3.12 -- Bamboo Data Center \u003e= 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\u0027s exact name and path. The vulnerability does not include the capability to enumerate or list directory contents."
        }
      ],
      "metrics": [
        {
          "cvssV4_0": {
            "baseScore": 9.3,
            "baseSeverity": "CRITICAL",
            "vectorString": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:H/VI:N/VA:N/SC:H/SI:H/SA:H",
            "version": "4.0"
          }
        }
      ],
      "problemTypes": [
        {
          "descriptions": [
            {
              "description": "Path Traversal (Arbitrary Read/Write)",
              "lang": "en",
              "type": "Path Traversal (Arbitrary Read/Write)"
            }
          ]
        }
      ],
      "providerMetadata": {
        "dateUpdated": "2026-10-06T16:30:55.209Z",
        "orgId": "f08a6ab8-ed46-4c22-8884-d911ccfe3c66",
        "shortName": "atlassian"
      },
      "references": [
        {
          "url": "https://jira.atlassian.com/browse/BAM-26567"
        },
        {
          "url": "https://jira.atlassian.com/browse/BSERV-20604"
        },
        {
          "url": "https://jira.atlassian.com/browse/CONFSERVER-104488"
        },
        {
          "url": "https://jira.atlassian.com/browse/CRUC-8741"
        },
        {
          "url": "https://jira.atlassian.com/browse/CWD-6610"
        },
        {
          "url": "https://jira.atlassian.com/browse/FE-7583"
        },
        {
          "url": "https://jira.atlassian.com/browse/JRASERVER-79546"
        },
        {
          "url": "https://jira.atlassian.com/browse/JSDSERVER-16809"
        }
      ]
    }
  },
  "cveMetadata": {
    "assignerOrgId": "f08a6ab8-ed46-4c22-8884-d911ccfe3c66",
    "assignerShortName": "atlassian",
    "cveId": "CVE-2026-21589",
    "datePublished": "2026-10-05T21:30:00.390Z",
    "dateReserved": "2026-01-01T00:00:40.722Z",
    "dateUpdated": "2026-10-07T13:04:58.027Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

The MITRE ATT&CK techniques below are AI-generated suggestions, inferred from the description of the vulnerability by the CIRCL/vulnerability-attack-technique-classification-roberta-base model, served locally by ML-Gateway. They have not been verified by an analyst and are provided for guidance only.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.

Related by attack behaviour

Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.

Action not permitted

BDU:2026-16016 (CVE-2026-21589)

CVE-2026-21589 (GCVE-0-2026-21589)

Tags

Sightings

Nomenclature

Related by attack behaviour