7.1

CVE-2026-21586

This High severity Improper Authorization vulnerability was introduced in versions 7.4.0, 7.13.0, 8.5.0, 8.9.0, 9.0.1, 9.1.0, 9.2.0, 9.3.1, 9.4.0, 9.5.1, 10.0.2, 10.1.0, and 10.2.0 of Confluence Data Center.

This Improper Authorization vulnerability, with a CVSS Score of 7.1, allows an authenticated attacker to gain unintended access and can lead to the exposure of resources or functionality, possibly providing attackers with sensitive information or even execute arbitrary code.

Atlassian recommends that Confluence Data Center customers upgrade to latest version, if you are unable to do so, upgrade your instance to one of the specified supported fixed versions:
 Confluence Data Center 9.2: Upgrade to a release greater than or equal to 9.2.24

 Confluence Data Center 10.2: Upgrade to a release greater than or equal to 10.2.17

See the release notes ([https://confluence.atlassian.com/doc/confluence-release-notes-327.html]). You can download the latest version of Confluence Data Center from the download center ([https://www.atlassian.com/software/confluence/download-archives]).

This vulnerability was reported via our Penetration Testing program.
Daten sind bereitgestellt durch das CVE Programm von einer CVE Numbering Authority (CNA) (Unstrukturiert).
HerstellerAtlassian
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Produkt Confluence Data Center
Version 10.2.1 to 10.2.15
Status affected
Version 10.1.0 to 10.1.2
Status affected
Version 10.0.2 to 10.0.3
Status affected
Version 9.5.1 to 9.5.4
Status affected
Version 9.4.0 to 9.4.1
Status affected
Version 9.3.1 to 9.3.2
Status affected
Version 9.2.0 to 9.2.23
Status affected
Version 9.1.1
Status affected
Version 8.9.7 to 8.9.8
Status affected
Version 8.5.16 to 8.5.31
Status affected
Version 7.19.28 to 7.19.30
Status affected
Version 10.2.17 to 10.2.18
Status unaffected
Version 9.2.24 to 9.2.25
Status unaffected
VulnDex Vulnerability Enrichment
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Zu dieser CVE wurde keine Warnung gefunden.
EPSS Metriken
Typ Quelle Score Percentile
EPSS FIRST.org 0.32% 0.255
CVSS Metriken
Quelle Base Score Exploit Score Impact Score Vector String
Atlassian 7.1 0 0
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X
CWE-285 Improper Authorization

The product does not perform or incorrectly performs an authorization check when an actor attempts to access a resource or perform an action.

https://confluence.atlassian.com/pages/viewpage.action?pageId=1822852209
https://jira.atlassian.com/browse/CONFSERVER-104418