CVSS 3.1
6.5 mediumCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:L/I:L/A:NCVE-2024-39836
Medium (6.5) in mattermost mattermost. EPSS 0.3% chance of exploitation in the next 30 days. Fixed in github.com/mattermost/mattermost/server/v8 9.10.1, 9.5.8, 9.8.3.
Mattermost versions 9.9.x <= 9.9.1, 9.5.x <= 9.5.7, 9.10.x <= 9.10.0 and 9.8.x <= 9.8.2 fail to ensure that remote/synthetic users cannot create sessions or reset passwords, which allows the munged email addresses, created by shared channels, to be used to receive email notifications and to reset passwords, when they are valid, functional emails.
Severity
- EPSS
- 0.3% chance of exploitation in the next 30 days; higher than 17% of CVEs (scores of 2026-10-31)
- CWE
- CWE-693
- Published
- Modified
- Record from
- the NVD, synced
Affected
- mattermost:mattermost
Packages (OSV)
| Advisory | Ecosystem | Package | Affected | Fixed in |
|---|---|---|---|---|
| GHSA-c6vp-jjgv-38wj | Go | github.com/mattermost/mattermost/server/v8 | >=9.9.0 <9.9.2 | 9.9.2 |
| GHSA-c6vp-jjgv-38wj | Go | github.com/mattermost/mattermost/server/v8 | >=9.5.0 <9.5.8 | 9.5.8 |
| GHSA-c6vp-jjgv-38wj | Go | github.com/mattermost/mattermost/server/v8 | >=9.10.0 <9.10.1 | 9.10.1 |
| GHSA-c6vp-jjgv-38wj | Go | github.com/mattermost/mattermost/server/v8 | >=9.8.0 <9.8.3 | 9.8.3 |
| GO-2024-3096 | Go | github.com/mattermost/mattermost-server | >=9.5.0+incompatible <9.5.8+incompatible >=9.8.0+incompatible <9.8.3+incompatible >=9.9.0+incompatible <9.9.2+incompatible >=9.10.0+incompatible <9.10.1+incompatible | 9.5.8+incompatible, 9.8.3+incompatible, 9.9.2+incompatible, 9.10.1+incompatible |
| GO-2024-3096 | Go | github.com/mattermost/mattermost-server/v5 | all versions | no fix published |
| GO-2024-3096 | Go | github.com/mattermost/mattermost-server/v6 | all versions | no fix published |
| GO-2024-3096 | Go | github.com/mattermost/mattermost/server/v8 | all versions | no fix published |