GitHub Advisoryadvisory · Go

GHSA-cmc8-222c-vqp9 Mattermost failed to properly validate that the channel that comes from the sync message is a shared channel

CRITICAL Published 2024-08-01 Modified 2024-11-18 Official page ↗
Aliases
CVE-2024-39274
Ecosystem
Go
Packages
github.com/mattermost/mattermost/server/v8
Severity
Critical
CVSS vector
CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:C/C:H/I:H/A:N
Weaknesses
CWE-284
Reviewed
2024-08-02

Affected packages

• Go github.com/mattermost/mattermost/server/v8: >= 9.5.0, < 9.5.7 → fixed in 9.5.7 • Go github.com/mattermost/mattermost/server/v8: >= 9.7.0, < 9.7.6 → fixed in 9.7.6 • Go github.com/mattermost/mattermost/server/v8: >= 9.8.0, < 9.8.2 → fixed in 9.8.2 • Go github.com/mattermost/mattermost/server/v8: >= 9.9.0, < 9.9.1 → fixed in 9.9.1

Description

Mattermost versions 9.9.x <= 9.9.0, 9.5.x <= 9.5.6, 9.7.x <= 9.7.5 and 9.8.x <= 9.8.1 fail to properly validate that the channel that comes from the sync message is a shared channel, when shared channels are enabled, which allows a malicious remote to add users to arbitrary teams and channels

Related

Alias · CVE (1)

  • CVE-2024-39274 Mattermost versions 9.9.x <= 9.9.0, 9.5.x <= 9.5.6, 9.7.x <= 9.7.5 and 9.8.x <= 9.8.1 fail to properly validate that the channel that comes… vulnerability

Weakness · CWE (1)

  • CWE-284 Improper Access Control weakness

References