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GHSA-4ppj-6chv-5pgc

Mattermost Microsoft Teams Plugin fails to properly mask sensitive configuration values

Source: GitHub Advisory Database (reviewed) High CVE-2026-2476

Packages

EcosystemPackageAffectedFixed in
Go github.com/mattermost/mattermost-plugin-msteams < 1.15.1-0.20260102165339-036c761bd3cb 1.15.1-0.20260102165339-036c761bd3cb

Details

As written in the advisory (Markdown source, shown as plain text).

Mattermost Plugins versions <=2.0.3.0 fail to properly mask sensitive configuration values which allows an attacker with access to support packets to obtain original plugin settings via exported configuration data. Mattermost Advisory ID: MMSA-2026-00606

References

External links from the advisory. They lead to third-party sites.