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CVE-2017-18917 High

Mattermost Server uses weak hashing for OAuth, email verification tokens and invitations

An issue was discovered in Mattermost Server before 3.8.2 and 3.7.5. Weak hashing was used for e-mail invitations, OAuth, and e-mail verification tokens.

Exploit probability 0.7%
Published May 24, 2022
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-2017-18917

An issue was discovered in Mattermost Server before 3.8.2, 3.7.5, and 3.6.7. Weak hashing was used for e-mail invitations, OAuth, and e-mail verification tokens.

View original source
Open Source Vulnerabilities GO-2026-4463

Mattermost Server uses weak hashing for OAuth, email verification tokens and invitations 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 v3.7.5-0.20170421192444-247cd1e51a8c.

View original source
Open Source Vulnerabilities GHSA-jxc4-w54c-qv5r

An issue was discovered in Mattermost Server before 3.8.2 and 3.7.5. Weak hashing was used for e-mail invitations, OAuth, and e-mail verification tokens.

View original source

05 / REFERENCES

Further evidence