Information Exposure Affecting github.com/mattermost/mattermost/api4 package, versions >=10.5.0 <10.5.12>=10.11.0 <10.11.4-rc3>=10.12.0 <10.12.1


Severity

Recommended
0.0
medium
0
10

CVSS assessment by Snyk's Security Team. Learn more

Threat Intelligence

EPSS
0.03% (7th percentile)

Do your applications use this vulnerable package?

In a few clicks we can analyze your entire application and see what components are vulnerable in your application, and suggest you quick fixes.

Test your applications
  • Snyk IDSNYK-GOLANG-GITHUBCOMMATTERMOSTMATTERMOSTAPI4-14038266
  • published16 Nov 2025
  • disclosed14 Nov 2025
  • creditEva Sarafianou

Introduced: 14 Nov 2025

NewCVE-2025-11794  (opens in a new tab)
CWE-200  (opens in a new tab)

How to fix?

Upgrade github.com/mattermost/mattermost/api4 to version 10.5.12, 10.11.4-rc3, 10.12.1 or higher.

Overview

Affected versions of this package are vulnerable to Information Exposure via the POST /api/v4/users/{user_id}/email/verify/member endpoint. An attacker can obtain sensitive information, such as password hashes and MFA secrets, by sending crafted requests to this endpoint.

CVSS Base Scores

version 4.0
version 3.1