Technology · Mattermost
Mattermost Desktop App vulnerabilities
Updated . Rebuilt every hour.
Junglewise Threat Intelligence has tracked 14 vulnerabilities in Mattermost Desktop App: 0 in the last 7 days and 3 in the last 90 days, 0 of them critical and 0 exploited in the wild. The most recent, CVE-2026-75588, was published on 17 September 2026. Nothing in the last four weeks, down from 3 vulnerabilities in the four before.
- Last 7 days
- 0
- Last 90 days
- 3
- Critical, all time
- 0
- Exploited in the wild
- 0
About Mattermost Desktop App
A native desktop application for the Mattermost open-source collaboration platform.
Latest Mattermost Desktop App vulnerabilities
- CVE-2026-75588: Mattermost Desktop App URL scheme validation bypasslowCVSS 2.6EPSS 0.2%
- CVE-2026-12284: Mattermost Desktop App IPC validation bypass in leaveCall handlerlowCVSS 3.7EPSS 0.1%
- CVE-2026-75025: Mattermost Desktop App content restriction bypassmediumCVSS 4.7EPSS 0.2%
- CVE-2026-9602: Mattermost Desktop App denial of service via malformed payloadmediumCVSS 6.5
- CVE-2026-8075: Mattermost Desktop App denial of service via malicious image linkmediumCVSS 6.5
- CVE-2026-8683: Mattermost Desktop App denial of service via long URLsmediumCVSS 6.5
- CVE-2026-6517: Mattermost Desktop App NTLM credential leakage via embedded imagesmediumCVSS 6.3
- CVE-2026-4643: Mattermost Desktop App denial of service via window.closelowCVSS 3.5
- CVE-2026-3471: Mattermost Desktop App denial of service via invalid pop-up URLmediumCVSS 6.5
- CVE-2025-13321: Mattermost Desktop App information disclosure in logslowCVSS 3.3EPSS 0.1%
- CVE-2025-1398: Mattermost Desktop App TCC bypass via code injectionlowCVSS 3.1EPSS 0.2%
- CVE-2024-39772: Mattermost Desktop App insufficient screen capture protectionlowCVSS 3.1EPSS 0.3%
- CVE-2024-39613: Mattermost Desktop App uncontrolled search path vulnerabilitylowCVSS 3.1EPSS 0.3%
- CVE-2024-36287: Mattermost Desktop App TCC bypass on macOSlowCVSS 3.1EPSS 0.2%
Most severe Mattermost Desktop App vulnerabilities
Exploited in the wild first, then by severity and CVSS score.
- CVE-2026-9602: Mattermost Desktop App denial of service via malformed payloadmediumCVSS 6.5
- CVE-2026-8075: Mattermost Desktop App denial of service via malicious image linkmediumCVSS 6.5
- CVE-2026-8683: Mattermost Desktop App denial of service via long URLsmediumCVSS 6.5
- CVE-2026-3471: Mattermost Desktop App denial of service via invalid pop-up URLmediumCVSS 6.5
- CVE-2026-6517: Mattermost Desktop App NTLM credential leakage via embedded imagesmediumCVSS 6.3
- CVE-2026-75025: Mattermost Desktop App content restriction bypassmediumCVSS 4.7EPSS 0.2%
- CVE-2026-12284: Mattermost Desktop App IPC validation bypass in leaveCall handlerlowCVSS 3.7EPSS 0.1%
- CVE-2026-4643: Mattermost Desktop App denial of service via window.closelowCVSS 3.5
- CVE-2025-13321: Mattermost Desktop App information disclosure in logslowCVSS 3.3EPSS 0.1%
- CVE-2024-39772: Mattermost Desktop App insufficient screen capture protectionlowCVSS 3.1EPSS 0.3%
Vulnerabilities per week
Nothing in the last four weeks, down from 3 vulnerabilities in the four before. The last 13 weeks, by the week each vulnerability was published.
| Week of | Bar | Vulns | Critical |
|---|---|---|---|
| 17 Aug 2026 | 0 | 0 | |
| 24 Aug 2026 | 0 | 0 | |
| 31 Aug 2026 | 0 | 0 | |
| 7 Sep 2026 | 0 | 0 | |
| 14 Sep 2026 | 3 | 0 | |
| 21 Sep 2026 | 0 | 0 | |
| 28 Sep 2026 | 0 | 0 | |
| 5 Oct 2026 | 0 | 0 | |
| 12 Oct 2026 | 0 | 0 | |
| 19 Oct 2026 | 0 | 0 | |
| 26 Oct 2026 | 0 | 0 | |
| 2 Nov 2026 | 0 | 0 | |
| 9 Nov 2026 | 0 | 0 |
Embed a badge
A live badge for a README, a status page or an internal wiki: how many Mattermost Desktop App vulnerabilities were published in the last 7 days and how many of them are critical, refreshed hourly.
[](https://junglewise.ai/threats/technologies/desktop-app)<a href="https://junglewise.ai/threats/technologies/desktop-app"><img src="https://junglewise.ai/threats/technologies/desktop-app/badge.svg" alt="Mattermost Desktop App vulnerabilities" /></a>How this is built
Junglewise Threat Intelligence collects vulnerabilities from NVD, GitHub Security Advisories, OSV, the CISA Known Exploited Vulnerabilities catalog, FIRST EPSS and vendor advisories, and matches each one to the technologies and vendors it affects. Dates are the date a vulnerability was published, in UTC.
The pages are rebuilt from the database every hour. Frozen weekly and monthly reports never change once published, so they can be cited.
Use this data
The same data is at https://junglewise.ai/threats/technologies/desktop-app.json, and this page as text at https://junglewise.ai/threats/technologies/desktop-app.md, for scripts and language models. It is free to reuse under CC BY 4.0 with a link back to this page.
Cite as: Junglewise Threat Intelligence, "Mattermost Desktop App vulnerabilities", https://junglewise.ai/threats/technologies/desktop-app, 12 November 2026.