GO-2026-5839

vendorUSosv

Mattermost allows authenticated users to gain access to private repositories in github.com/mattermost/mattermost-plugin-github

view advisory published 2026-07-07Licence: per source

Mattermost allows authenticated users to gain access to private repositories in github.com/mattermost/mattermost-plugin-github

01

describes (1)

Related CVEs.

IDseverity exploitable
CVE-2026-28735US—OT elevated—
Mattermost versions 11.6.x <= 11.6.0, 11.5.x <= 11.5.3, 11.4.x <= 11.4.4, 10.11.x <= 10.11.14 fail to validate the OAuth token scope on the callback which allows an authenticated M…
02

references

External citations — patches, advisories, analysis.

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