CVE-2024-39837 json
Malicious remote can create arbitrary channels
published 2024-08-01 2 y ago modified 2026-06-17 4 mo ago also BIT-mattermost-2024-39837 , EUVD-2024-2667 , GHSA-vvpg-55p7-5h8w , GO-2024-3032
- cvss
- 3.8
- version 3.1, CNA
- cisa kev
- Not listed
- not in CISA's catalog
- epss
- 0.3%
- EPSS 0.3% chance of exploitation in 30 days, percentile 20%
- public exploits
- 0
- none known
Summary
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.
Patch / fix
- go github.com/mattermost/mattermost/server/v8 8.0.0-20240626164322-c758cecaf30c, 9.5.7, 9.9.1
- go github.com/mattermost/mattermost-server 9.5.7, 9.5.7+incompatible, 9.9.1, 9.9.1+incompatible
- go github.com/mattermost/mattermost-server/v5 5.3.2-0.20240626164322-c758cecaf30c
- go github.com/mattermost/mattermost-server/v6 6.0.0-20240626164322-c758cecaf30c
- bitnami mattermost 9.5.7
- Mattermost Mattermost 9.5.7, 9.9.1, 9.10.0
CISA SSVC
- Exploitation
- none
- Automatable
- no
- Technical impact
- partial
- Assessed
- 2 y ago
Exploit prediction
0.28% chance of exploitation in the next 30 days, higher than 20% of all scored CVEs (FIRST EPSS, 2026-11-08).
CVSS scores
| assigned by | version | score | vector |
|---|---|---|---|
| CNA | 3.1 | 3.8 | CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:N |
| GitHub | 3.1 | 3.8 | CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:L/I:L/A:N |
| NVD | 3.1 | 5.4 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N |
| OSV | 3.1 | 5.4 | CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N |
Affected packages
| ecosystem | package | affected | fixed in |
|---|---|---|---|
| go | github.com/mattermost/mattermost/server/v8 | >=9.5.0, <9.5.7 >=9.9.0, <9.9.1 <8.0.0-20240626164322-c758cecaf30c all versions |
9.5.7 9.9.1 8.0.0-20240626164322-c758cecaf30c |
| go | github.com/mattermost/mattermost-server | >=9.9.0, <9.9.1 >=9.5.0, <9.5.7 >=9.5.0+incompatible, <9.5.7+incompatible >=9.9.0+incompatible, <9.9.1+incompatible |
9.9.1 9.5.7 9.5.7+incompatible 9.9.1+incompatible |
| go | github.com/mattermost/mattermost-server/v5 | <5.3.2-0.20240626164322-c758cecaf30c all versions |
5.3.2-0.20240626164322-c758cecaf30c |
| go | github.com/mattermost/mattermost-server/v6 | <6.0.0-20240626164322-c758cecaf30c all versions |
6.0.0-20240626164322-c758cecaf30c |
| bitnami | mattermost | >=9.5.0, <9.5.7 >=9.9.0, <=9.9.0 |
9.5.7 |
Affected products
- Mattermost Mattermost
Classification
- Weakness
-
- CWE-284 Improper Access Control
References
-
mattermost.com
/security-updates
web, vendor-advisory
-
nvd.nist.gov
/vuln/detail/CVE-2024-39837
advisory, web
-
github.com
/mattermost/mattermost
package
-
pkg.go.dev
/vuln/GO-2024-3032
web
-
github.com
/advisories/GHSA-vvpg-55p7-5h8w
advisory
Sources
- CVE List CVE-2024-39837
- GitHub Advisory GHSA-vvpg-55p7-5h8w
- NVD CVE-2024-39837
- OSV BIT-mattermost-2024-39837
- OSV GO-2024-3032
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