Mattermost incorrectly issues two sessions when using desktop SSO

Description

References

• nvd.nist.gov/vuln/detail/CVE-2024-10214 · ADVISORY
• mattermost/mattermost commit 0d6b107 · WEB
• GitHub Advisory GHSA-hm57-h27x-599c · ADVISORY
• mattermost/mattermost · PACKAGE
• mattermost.com/security-updates · WEB

More vulnerabilities in github.com/mattermost/mattermost-server

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• CVE-2026-8074LOW 3.8Mattermost versions 11.7.x <= 11.7.0, 10.11.x <= 10.11.17 fail to enforce bot-specific permission checks on the user active status endpoint,…
• CVE-2026-6673MEDIUM 6.4Mattermost versions 11.7.x <= 11.7.0, 11.6.x <= 11.6.2, 11.5.x <= 11.5.5, 10.11.x <= 10.11.17 fail to authenticate Atlassian Connect install…
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