CVE-2024-39837
Mattermost did not properly restrict channel creation in github.com/mattermost/mattermost-server
3.8
LOW
CVSS 3.1
EPSS 0.30%
Description
Mattermost versions 9.9.x <= 9.9.0, 9.5.x <= 9.5.6 fail to properly restrict channel creation which allows a malicious remote to create arbitrary channels, when shared channels were enabled.
How to fix CVE-2024-39837
To remediate CVE-2024-39837, upgrade the affected package to a fixed version below.
- —upgrade to 9.5.7 or later
- —upgrade to 9.5.7+incompatible or later
- —upgrade to 9.9.1 or later
- —upgrade to 5.3.2-0.20240626164322-c758cecaf30c or later
- —no fix listed
- —upgrade to 6.0.0-20240626164322-c758cecaf30c or later
- —no fix listed
- —no fix listed
- —upgrade to 9.5.7 or later
Is CVE-2024-39837 being exploited?
Low — EPSS is 0.3%, meaning exploitation activity has not been observed at scale.
Affected packages (9)
- >= 9.5.0, < 9.5.7 | >= 9.9.0, <= 9.9.0
- >= 9.5.0+incompatible, < 9.5.7+incompatible, >= 9.9.0+incompatible, < 9.9.1+incompatible
- >= 9.9.0, < 9.9.1
- from 0, < 5.3.2-0.20240626164322-c758cecaf30c
- from 0
- from 0, < 6.0.0-20240626164322-c758cecaf30c
- from 0
- from 0
- >= 9.5.0, < 9.5.7
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 3.1 | LOW3.8 | CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:N |