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CVE-2017-18895 Moderate

Mattermost Server exposes sensitive user status information via REST API version 4 endpoint in github.com/mattermost/mattermost-server

Mattermost Server exposes sensitive user status information via REST API version 4 endpoint in github.com/mattermost/mattermost-server

Exploit probability 0.9%
Published January 13, 2026
Required by Not available
Last source change March 3, 2026

02 / AFFECTED SOFTWARE

Affected packages

Unknown Unknown

17 explicit affected versions

Go github.com/mattermost/mattermost-server
Go github.com/mattermost/mattermost-server

03 / CONNECTIONS

Connected vulnerabilities

related OPENSUSE-SU-2026:21483-1

04 / EVIDENCE

Source records

Open Source Vulnerabilities CVE-2017-18895

An issue was discovered in Mattermost Server before 4.2.0, 4.1.1, and 4.0.5. It allows attackers to obtain sensitive information (user statuses) via a REST API version 4 endpoint.

View original source
Open Source Vulnerabilities GO-2026-4295

Mattermost Server exposes sensitive user status information via REST API version 4 endpoint in github.com/mattermost/mattermost-server

View original source
Open Source Vulnerabilities GHSA-h742-xx59-r9pq

An issue was discovered in Mattermost Server before 4.2.0, 4.1.1, and 4.0.5. It allows attackers to obtain sensitive information (user statuses) via a REST API version 4 endpoint.

View original source

05 / REFERENCES

Further evidence