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CVE-2017-18915 Critical

Mattermost Server server restarts may provide attackers with API access in github.com/mattermost/mattermost-server

Mattermost Server server restarts may provide attackers with API access in github.com/mattermost/mattermost-server. NOTE: The source advisory for this report contains additional versions that could not be automatically mapped to standard Go module versions. (If this is causing false-positive reports from vulnerability scanners, please suggest an edit to the report.) The additional affected modules and versions are: github.com/mattermost/mattermost-server before v3.6.7-0.20170420152529-0968e4079e0a.

Exploit probability 1.2%
Published February 17, 2026
Required by Not available
Last source change February 19, 2026

02 / AFFECTED SOFTWARE

Affected packages

Unknown Unknown

16 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-2017-18915

An issue was discovered in Mattermost Server before 3.8.2, 3.7.5, and 3.6.7. After a restart of a server, an attacker might suddenly gain API Endpoint access.

View original source
Open Source Vulnerabilities GO-2026-4462

Mattermost Server server restarts may provide attackers with API access in github.com/mattermost/mattermost-server. NOTE: The source advisory for this report contains additional versions that could not be automatically mapped to standard Go module versions. (If this is causing false-positive reports from vulnerability scanners, please suggest an edit to the report.) The additional affected modules and versions are: github.com/mattermost/mattermost-server before v3.6.7-0.20170420152529-0968e4079e0a.

View original source
Open Source Vulnerabilities GHSA-hxxj-8phw-74vw

An issue was discovered in Mattermost Server before 3.8.2, 3.7.5, and 3.6.7. After a restart of a server, an attacker might suddenly gain API Endpoint access.

View original source

05 / REFERENCES

Further evidence