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CVE-2017-18908 Critical

Mattermost Server password reset email requests can be sent to attacker-provided email addresses in github.com/mattermost/mattermost-server

Mattermost Server password reset email requests can be sent to attacker-provided email addresses in github.com/mattermost/mattermost-server

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

7 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-2017-18908

An issue was discovered in Mattermost Server before 4.0.0, 3.10.2, and 3.9.2. A password-reset request was sometime sent to an attacker-provided e-mail address.

View original source
Open Source Vulnerabilities GHSA-34cx-hvm4-vx7j

An issue was discovered in Mattermost Server before 4.0.0, 3.10.1, and 3.9.1. A password reset request was sometimes sent to an attacker-provided e-mail address.

View original source
Open Source Vulnerabilities GO-2026-4476

Mattermost Server password reset email requests can be sent to attacker-provided email addresses in github.com/mattermost/mattermost-server

View original source

05 / REFERENCES

Further evidence