CVE-2024-41926
LOW2.7EPSS 0.16%Mattermost allows remote actor to set arbitrary RemoteId values for synced users
Published: 8/1/2024Modified: 7/9/2025
Description
Mattermost versions 9.9.x <= 9.9.0 and 9.5.x <= 9.5.6 fail to validate the source of sync messages and only allow the correct remote IDs, which allows a malicious remote to set arbitrary RemoteId values for synced users and therefore claim that a user was synced from another remote.
Affected packages (7)
- Bitnami/mattermost>= 9.5.0, < 9.5.7 | >= 9.9.0, <= 9.9.0
- Go/github.com/mattermost/mattermostfrom 0, < 5.3.2-0.20240604093018-5114c3b7cdb8
- Go/github.com/mattermost/mattermost-server>= 9.5.0+incompatible, < 9.5.7+incompatible, >= 9.9.0+incompatible, < 9.9.1+incompatible
- Go/github.com/mattermost/mattermost-server/v5from 0
- Go/github.com/mattermost/mattermost-server/v6from 0
- Go/github.com/mattermost/mattermost/server/v8from 0
- Go/github.com/mattermost/mattermost/server/v8>= 9.5.0, < 9.5.7
CVSS scores
| Source | Version | Severity | Vector |
|---|---|---|---|
| osv | CVSS 4.0 | — | CVSS:4.0/AV:N/AC:L/AT:N/PR:H/UI:N/VC:N/VI:N/VA:N/SC:N/SI:L/SA:N |
| osv | CVSS 3.1 | LOW2.7 | CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:L/A:N |
References (6)
- ADVISORYhttps://github.com/advisories/GHSA-9fpw-c9x7-cv3j
- ADVISORYhttps://nvd.nist.gov/vuln/detail/CVE-2024-41926
- PATCHhttps://github.com/mattermost/mattermost
- WEBhttps://github.com/mattermost/mattermost/commit/5114c3b7cdb84086959bf0ef8bc5afdaedf9fef6
- WEBhttps://mattermost.com/security-updates
- WEBhttps://pkg.go.dev/vuln/GO-2024-3022