medium2.7
CVE-2024-29977
Mattermost failed to properly validate synced reactions
Impact
Mattermost versions 9.9.x <= 9.9.0, 9.5.x <= 9.5.6 fail to properly validate synced reactions, when shared channels are enabled, which allows a malicious remote to create arbitrary reactions on arbitrary posts
Affected packages
| Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|
| go | github.com/mattermost/mattermost/server/v8 | >= 9.5.0, < 9.5.7 | 9.5.7 |
Affected products
| Vendor | Product | Affected versions |
|---|---|---|
| Mattermost | Mattermost | from 9.5.0 before 9.5.7 Version 9.9.0 |