Rewindex/CVEs

CVE-2026-21582

Description

This High severity BASM (Broken Authentication & Session Management) vulnerability known as CVE-2026-21582 was introduced in version 7.2.1 of Crowd Data Center. This BASM (Broken Authentication & Session Management) vulnerability, with a CVSS Score of 8.8, allows an unauthenticated attacker to perform actions as another user. Atlassian recommends that Crowd 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: Crowd Data Center 7.2: Upgrade to a release greater than or equal to 7.2.2 See the release notes (https://confluence.atlassian.com/crowd/crowd-release-notes-199094.html). You can download the latest version of Crowd Data Center from the download center (https://www.atlassian.com/software/crowd/download-archive). This vulnerability was reported via our Penetration Testing program.

Tracked companies

BitbucketJira

Mapped from the CVE’s affected-product data, NVD CPE matches, vendor advisories or package feeds. A mapping means the vendor’s software is named, not that its hosted service was exposed.

Status incidents that name it

No tracked status incident names this CVE.

Affected vendors and products

Atlassian: Crowd Data Center

References

• CVE record on cve.org (opens in new tab)
• NVD entry (opens in new tab)
• confluence.atlassian.com/pages/viewpage.action (opens in new tab)
• jira.atlassian.com/browse/CWD-6562 (opens in new tab)

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• CVE records from the CVE Program (cve.org). CVE® is a registered trademark of The MITRE Corporation. (opens in new tab)
• This product uses data from the NVD API but is not endorsed or certified by the NVD. (opens in new tab)
• Known Exploited Vulnerabilities catalog from CISA. (opens in new tab)
• EPSS scores from FIRST (Exploit Prediction Scoring System). (opens in new tab)