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  5. CVE-2017-18905

CVE-2017-18905: Mattermost Server has Insufficient Session Expiration when used as an OAuth 2.0 service provider

May 24, 2022 (updated January 12, 2026)

An issue was discovered in Mattermost Server before 4.0.0, 3.10.2, and 3.9.2, when used as an OAuth 2.0 service provider, Session invalidation was mishandled.

References

  • github.com/advisories/GHSA-g24c-fx4v-xg9w
  • github.com/mattermost/mattermost
  • github.com/mattermost/mattermost/commit/15ad24d160cb4604d0605ebbfa53d11a57820706
  • github.com/mattermost/mattermost/commit/b17fca0d5ee7557e3df1cf1d1da8bd749859e35f
  • github.com/mattermost/mattermost/commit/fbc170733e86f09b46ba754dd03304733d2f482f
  • mattermost.com/security-updates
  • nvd.nist.gov/vuln/detail/CVE-2017-18905

Code Behaviors & Features

Detect and mitigate CVE-2017-18905 with GitLab Dependency Scanning

Secure your software supply chain by verifying that all open source dependencies used in your projects contain no disclosed vulnerabilities. Learn more about Dependency Scanning →

Affected versions

All versions before 3.9.2, all versions starting from 3.10.0 before 3.10.2

Fixed versions

  • 3.9.2
  • 3.10.2

Solution

Upgrade to versions 3.10.2, 3.9.2 or above.

Impact 5.3 MEDIUM

CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

Learn more about CVSS

Weakness

  • CWE-613: Insufficient Session Expiration

Source file

go/github.com/mattermost/mattermost-server/CVE-2017-18905.yml

Spotted a mistake? Edit the file on GitLab.

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