GHSA-2j87-p623-8cc2
Mattermost vulnerable to Observable Timing Discrepancy
Packages
| Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|
| Go | github.com/mattermost/mattermost/server/v8 | >= 10.5.0, < 10.5.2 | 10.5.2 |
| Go | github.com/mattermost/mattermost/server/v8 | < 8.0.0-20250314142426-c049748b8863 | 8.0.0-20250314142426-c049748b8863 |
| Go | github.com/mattermost/mattermost-plugin-msteams | < 2.1.0 | 2.1.0 |
Details
As written in the advisory (Markdown source, shown as plain text).
Mattermost Plugin MSTeams versions <2.1.0 and Mattermost Server versions 10.5.x <=10.5.1 with the MS Teams plugin enabled fail to perform constant time comparison on a MSTeams plugin webhook secret which allows an attacker to retrieve the webhook secret of the MSTeams plugin via a timing attack during webhook secret comparison.
References
External links from the advisory. They lead to third-party sites.