CVE-2026-3108: Terminal Escape Injection in mmctl Report Posts Command
Vendor fix available · Affected: Mattermost · Exploitation: unlikely (under 1%)
Not in CyberSIXT coverage yet: no article names this CVE. This page shows the public record.
Higher than 21% of scored CVEs
DescriptionCVE.org
Mattermost versions 11.2.x <= 11.2.2, 10.11.x <= 10.11.10, 11.4.x <= 11.4.0, 11.3.x <= 11.3.1 fail to sanitize user-controlled post content in the mmctl commands terminal output which allows attackers to manipulate administrator terminals via crafted messages containing ANSI and OSC escape sequences that enable screen manipulation, fake prompts, and clipboard hijacking.. Mattermost Advisory ID: MMSA-2026-00599
Affected products1
From the CVE record. A product or version that is not listed is unknown, not unaffected.
- Mattermost · Mattermostfrom 11.2.0 up to and including 11.2.2; from 10.11.0 up to and including 10.11.10; from 11.4.0 up to and including 11.4.0; from 11.3.0 up to and including 11.3.1
On the Atlas
Every published CVE is on the CyberSIXT Atlas, grouped by weakness, vendor and month.
- Exploitation
- Unlikely (under 1%). EPSS under 1%, or no score yet.
- CISA KEV
- Not listed
- Public check
- No public nuclei template
- Vendor
- Mattermost
- Published
- March 2026
CoverageNo articles yet
No CyberSIXT article names CVE-2026-3108 yet, so there is no coverage timeline, action brief or change log for it. Everything on this page comes from the public CVE record, CISA KEV, EPSS and the nuclei template index. Search the archive or see the CVEs in the news.