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  5. CVE-2017-18901

CVE-2017-18901: Mattermost Server exposes private team invite ID

May 24, 2022 (updated January 12, 2026)

An issue was discovered in Mattermost Server before 4.1.0, 4.0.4, and 3.10.3. It allows attackers to discover a team invite ID by requesting a JSON document.

References

  • github.com/advisories/GHSA-c253-8hr4-r8v9
  • github.com/mattermost/mattermost
  • github.com/mattermost/mattermost/commit/5e822a7d09214d5446d54e02a0611df8e64f3aa5
  • github.com/mattermost/mattermost/commit/638c38cc0d2296335a0fbd5bde8b6d2cbf9f9062
  • github.com/mattermost/mattermost/commit/a78ed923f1c73ae5551893374fb9803ee2f4c8e6
  • mattermost.com/security-updates
  • nvd.nist.gov/vuln/detail/CVE-2017-18901

Code Behaviors & Features

Detect and mitigate CVE-2017-18901 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 3.10.3, all versions starting from 4.0.0 before 4.0.4

Fixed versions

  • 3.10.3
  • 4.0.4

Solution

Upgrade to versions 3.10.3, 4.0.4 or above.

Impact 5.3 MEDIUM

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

Learn more about CVSS

Weakness

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

Source file

go/github.com/mattermost/mattermost-server/CVE-2017-18901.yml

Spotted a mistake? Edit the file on GitLab.

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