SEPTEMBER 7, 2026
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Case File

CVE-2026-21579

HIGH · CVSS 7.5 EPSS 0.26%

Source: NVD + CISA KEV + EPSS · Published 2026-07-21 · Last synced 2026-08-20

CyberRota Analysis

AI-Generated

Confluence Data Center versions 7.17.0 through 10.2.0 are vulnerable to an information disclosure flaw that allows unauthenticated attackers to access sensitive information. Organizations using affected versions should prioritize upgrading to at least version 9.2.22 or 10.2.14 to mitigate the risk of unauthorized data exposure. Immediate action is recommended for all Confluence Data Center customers to protect their systems and sensitive data.

CVE
CVE-2026-21579
Severity
HIGH
CVSS
7.5
EPSS
0.26%

Original NVD Description

This High severity Information Disclosure vulnerability was introduced in versions 7.17.0, 7.19.0, 8.5.0, 8.9.0, 9.0.1, 9.1.0, 9.2.0, 10.0.2, 10.1.0, and 10.2.0 of Confluence Data Center. This Information Disclosure vulnerability, with a CVSS Score of 8.2, allows an unauthenticated attacker to view sensitive information via an Information Disclosure vulnerability. 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 9.2.22 Confluence Data Center 10.2: Upgrade to a release greater than or equal to 10.2.14 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 Atlassian (Internal) program.

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