Riskcovery

CVE-2026-21579

State
Published
Severity
8.2 High
Published
Jul 21, 2026
Updated
Jul 22, 2026
Reserved
Jan 1, 2026

Read the record on cve.org

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.

Scores

CVSSScoreVectorSource
4.08.2 HighCVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:Natlassian

Weaknesses

  • CWE-200 Exposure of Sensitive Information to an Unauthorized Actor

Affected Products

ProductVersions
Confluence Data CenterAtlassian
  • 10.2.0 to 10.2.13Affected
  • 10.1.0 to 10.1.2Affected
  • 10.0.2 to 10.0.3Affected
  • 9.2.0 to 9.2.21Affected
  • 9.1.0 to 9.1.1Affected
  • 9.0.1 to 9.0.3Affected
  • 8.9.5 to 8.9.8Affected
  • 8.5.14 to 8.5.31Affected
  • 7.19.26 to 7.19.30Affected
  • 10.2.14Not affected
  • 9.2.22Not affected

References

Every record here comes from the CVE Program’s CVE List. © 1999–2026 The MITRE Corporation. CVE is a registered trademark of The MITRE Corporation. The records are reproduced under the CVE Program terms of use.