CVE-2026-6347
EUVD-2026-3075218.05.2026, 09:16
Mattermost versions 11.5.x <= 11.5.1, 10.11.x <= 10.11.13, 11.4.x <= 11.4.3 fail to sanitize sensitive configuration fields in the Mattermost Calls plugin which allows an attacker with access to a support packet to obtain TURN server credentials via the plaintext values present in the exported plugin configuration.. Mattermost Advisory ID: MMSA-2026-00605Enginsight
Affected Products (NVD)
| Vendor | Product | Version |
|---|---|---|
| mattermost | mattermost_server | 10.11.0 ≤ 𝑥 < 10.11.14 |
| mattermost | mattermost_server | 11.4.0 ≤ 𝑥 < 11.4.4 |
| mattermost | mattermost_server | 11.5.0 ≤ 𝑥 < 11.5.2 |
𝑥
= Vulnerable software versions
Early Detection
Affected products identified ahead of NVD analysis through intelligence sources.
| Vendor | Product | Version | Source |
|---|---|---|---|
| mattermost | mattermost | 11.5.0 ≤ 𝑥 ≤ 11.5.1 | CNA |
| mattermost | mattermost | 10.11.0 ≤ 𝑥 ≤ 10.11.13 | CNA |
| mattermost | mattermost | 11.4.0 ≤ 𝑥 ≤ 11.4.3 | CNA |
Common Weakness Enumeration
References