Mattermost Desktop App fails to restrict the allow list of domains which NTLM credentials are passed
Default status is the baseline for the product, each version can override it (e.g. patched versions marked unaffected).
| Vendor | Product | Default status | Versions | ||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Mattermost | Mattermost | unaffected |
|
Configuration 1 [-]
|
No data.
| Vendor | Product | Versions | ||||||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Mattermost | Mattermost |
|
Vendor Solution
Update Mattermost Desktop App to versions 6.2.0, 5.13.6.0 or higher.
No CVSS v4.0
No CVSS v3.0
No CVSS v2
This CVE is not in the KEV list.
Exploit prediction score: < 1% (0.187% probability within 30 days)
| Link | Providers |
|---|---|
| https://mattermost.com/security-updates |
|
| Type | Values Removed | Values Added |
|---|---|---|
| First Time appeared |
Mattermost mattermost Desktop
|
|
| CPEs | cpe:2.3:a:mattermost:mattermost_desktop:*:*:*:*:*:*:*:* cpe:2.3:a:mattermost:mattermost_desktop:*:-:*:*:*:*:*:* |
|
| Vendors & Products |
Mattermost mattermost Desktop
|
| Type | Values Removed | Values Added |
|---|---|---|
| First Time appeared |
Mattermost
Mattermost mattermost |
|
| Vendors & Products |
Mattermost
Mattermost mattermost |
| Type | Values Removed | Values Added |
|---|---|---|
| Metrics |
ssvc
|
| Type | Values Removed | Values Added |
|---|---|---|
| Description | Mattermost Desktop App versions <=6.1 5.5.13.0 fail to restrict the allow list of domains to which NTLM credentials were forwarded to in the Mattermost Desktop App which allows any user on a server without the image proxy enabled to intercept other users credentials via embedding an image that routes to an external web server. Mattermost Advisory ID: MMSA-2026-00651 | |
| Title | Mattermost Desktop App fails to restrict the allow list of domains which NTLM credentials are passed | |
| Weaknesses | CWE-522 | |
| References |
| |
| Metrics |
cvssV3_1
|