FlawAtlas
Search the atlas
CVE-2017-18884 High

Mattermost Server exposes OAuth personal access tokens to attackers in github.com/mattermost/mattermost-server

Mattermost Server exposes OAuth personal access tokens to attackers in github.com/mattermost/mattermost-server

Exploit probability 0.8%
Published December 8, 2025
Required by Not available
Last source change March 3, 2026

02 / AFFECTED SOFTWARE

Affected packages

Unknown Unknown

14 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 GO-2025-4197

Mattermost Server exposes OAuth personal access tokens to attackers in github.com/mattermost/mattermost-server

View original source
Open Source Vulnerabilities GHSA-876j-jfqf-m7j7

An issue was discovered in Mattermost Server before 4.3.0, 4.2.1, and 4.1.2. It allows attackers to gain privileges by using a registered OAuth application with personal access tokens.

View original source
Open Source Vulnerabilities CVE-2017-18884

An issue was discovered in Mattermost Server before 4.3.0, 4.2.1, and 4.1.2. It allows attackers to gain privileges by using a registered OAuth application with personal access tokens.

View original source

05 / REFERENCES

Further evidence