CVE-2026-19600
EUVD-2026-10274416.10.2026, 08:17
Mattermost versions 11.9.x <= 11.9.1, 11.8.x <= 11.8.5, 11.7.x <= 11.7.10, 11.10.x <= 11.10.1 fail to sanitize authentication tokens before writing them to server log entries, which allows an attacker with access to server logs to obtain valid session tokens or OAuth access tokens and impersonate authenticated users via the debug-level Mattermost server log.. Mattermost Advisory ID: MMSA-2026-00763Enginsight
Early Detection
Affected products identified ahead of NVD analysis through intelligence sources.
| Vendor | Product | Version | Source |
|---|---|---|---|
| mattermost | mattermost | 11.9.0 ≤ 𝑥 ≤ 11.9.1 | CNA |
| mattermost | mattermost | 11.8.0 ≤ 𝑥 ≤ 11.8.5 | CNA |
| mattermost | mattermost | 11.7.0 ≤ 𝑥 ≤ 11.7.10 | CNA |
| mattermost | mattermost | 11.10.0 ≤ 𝑥 ≤ 11.10.1 | CNA |
Common Weakness Enumeration
References