Analysis
Analysis and contextual insights are available on OpenCVE Cloud.
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 |
|
No data.
No data.
No data available yet.
Vendor Solution
Update Mattermost to versions 11.11.0, 11.9.2, 11.8.6, 11.7.11, 11.10.2 or higher.
Tracking
Sign in to view the affected projects.
No advisories yet.
| Link | Providers |
|---|---|
| https://mattermost.com/security-updates |
|
Fri, 16 Oct 2026 07:15:00 +0000
| Type | Values Removed | Values Added |
|---|---|---|
| Description | Mattermost versions 11.9.x <= 11.9.1, 11.8.x <= 11.8.5, 11.7.x <= 11.7.10, 11.10.x <= 11.10.1 fail to require re-entry of the stored client secret when validating an outgoing OAuth connection, which allows an authenticated user with permission to manage outgoing OAuth connections to obtain the secret via pointing the token URL at an attacker-controlled endpoint and triggering validation.. Mattermost Advisory ID: MMSA-2026-00761 | |
| Title | Outgoing OAuth connection client secret exposure during connection validation | |
| Weaknesses | CWE-201 | |
| References |
| |
| Metrics |
cvssV3_1
|
Subscriptions
No data.
MITRE
Status: PUBLISHED
Assigner: Mattermost
Published:
Updated: 2026-10-16T06:54:57.403Z
Reserved: 2026-08-11T12:04:08.947Z
Link: CVE-2026-19541
Vulnrichment
No data.
NVD
Status : Received
Published: 2026-10-16T07:17:12.520
Modified: 2026-10-16T07:17:12.520
Link: CVE-2026-19541
Redhat
No data.
OpenCVE Enrichment
No data.
-
CWE-201
Insertion of Sensitive Information Into Sent Data