Metrics
Affected Vendors & Products
Source | ID | Title |
---|---|---|
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EUVD-2025-0107 | Mattermost versions 10.2.x <= 10.2.0, 9.11.x <= 9.11.5, 10.0.x <= 10.0.3, 10.1.x <= 10.1.3 fail to properly handle posts with attachments containing fields that cannot be cast to a String, which allows an attacker to cause the webapp to crash via creating and sending such a post to a channel. |
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GHSA-w6xh-c82w-h997 | Mattermost webapp crash via a crafted post |
Solution
Update Mattermost to versions 10.3.0, 2.23.0, 10.2.1, 9.11.6, 10.0.4, 10.1.4 or higher.
Workaround
No workaround given by the vendor.
Link | Providers |
---|---|
https://mattermost.com/security-updates |
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Wed, 01 Oct 2025 18:00:00 +0000
Type | Values Removed | Values Added |
---|---|---|
First Time appeared |
Mattermost mattermost Server
|
|
CPEs | cpe:2.3:a:mattermost:mattermost_server:*:*:*:*:*:*:*:* cpe:2.3:a:mattermost:mattermost_server:10.2.0:-:*:*:*:*:*:* |
|
Vendors & Products |
Mattermost mattermost Server
|
Thu, 16 Jan 2025 19:15:00 +0000
Type | Values Removed | Values Added |
---|---|---|
Metrics |
ssvc
|
Thu, 16 Jan 2025 18:30:00 +0000
Type | Values Removed | Values Added |
---|---|---|
Description | Mattermost versions 10.2.x <= 10.2.0, 9.11.x <= 9.11.5, 10.0.x <= 10.0.3, 10.1.x <= 10.1.3 fail to properly handle posts with attachments containing fields that cannot be cast to a String, which allows an attacker to cause the webapp to crash via creating and sending such a post to a channel. | |
Title | Webapp crash via object that can't be cast to String in Attachment Field | |
Weaknesses | CWE-1287 | |
References |
| |
Metrics |
cvssV3_1
|

Status: PUBLISHED
Assigner: Mattermost
Published:
Updated: 2025-01-16T18:57:02.927Z
Reserved: 2025-01-16T18:10:41.926Z
Link: CVE-2025-20621

Updated: 2025-01-16T18:56:57.789Z

Status : Analyzed
Published: 2025-01-16T19:15:29.960
Modified: 2025-10-01T17:54:41.760
Link: CVE-2025-20621

No data.

Updated: 2025-07-13T11:07:19Z