# Mattermost in October 2025: incidents, uptime and changes

> Mattermost in October 2025: 0 incidents on its status page (0 major or critical), 100% free of major or critical incidents (vendor-reported), 9 CVEs. From Rewindex’s archive of Mattermost’s status, pricing and policy pages.

Canonical: https://rewindex.com/company/mattermost/2025/10
Last updated: 2026-10-19T16:10:00Z

- Incidents posted: 0 (major/critical: 0) · Maintenance: 0
- By vendor impact label: none
- Uptime (vendor-reported): 100% free of major/critical incidents, 100% free of any incident; outage time 0 min, incident time 0 min
- Price changes: 0 · Pricing/legal/trust page changes: 0 · Deprecations: 0 · CVEs: 9
- Previous month: [September 2025](https://rewindex.com/company/mattermost/2025/09.md) · Next: [November 2025](https://rewindex.com/company/mattermost/2025/11.md) · [All months](https://rewindex.com/company/mattermost/reports.md) · [Mattermost](https://rewindex.com/company/mattermost.md)

_Uptime: Derived from the incidents the vendor posted on its own status page, not measured by us. A minute counts as an outage minute when a major or critical incident (as the vendor labelled it) was open; incident minutes include minor ones too. Maintenance and incidents marked "no impact" are left out, overlapping incidents are merged, a resolved incident counts for at most 7 days, and one still open with no resolution counts for at most 24 hours._

## All incidents

_No incidents posted this month._

## CVEs published

- [CVE-2025-11579](https://rewindex.com/cve/CVE-2025-11579.md) DoS via Out Of Memory Crash (CVSS 5.3), published 2025-10-10
- [CVE-2025-58084](https://rewindex.com/cve/CVE-2025-58084.md) Mattermost Desktop App crashes when clicking on malformed external URL (CVSS 3.5), published 2025-10-13
- [CVE-2025-41443](https://rewindex.com/cve/CVE-2025-41443.md) Guest user can discover active public channels (CVSS 4.3), published 2025-10-16
- [CVE-2025-54499](https://rewindex.com/cve/CVE-2025-54499.md) Insecure string comparison enables timing attacks (CVSS 3.1), published 2025-10-16
- [CVE-2025-58075](https://rewindex.com/cve/CVE-2025-58075.md) Arbitrary Mattermost Team can be joined by manipulating the SAML RelayState (CVSS 8.1), published 2025-10-16
- [CVE-2025-10545](https://rewindex.com/cve/CVE-2025-10545.md) Guest user can add unauthorized team users to private channels (CVSS 3.1), published 2025-10-16
- [CVE-2025-41410](https://rewindex.com/cve/CVE-2025-41410.md) Slack import bypasses email verification for team access controls (CVSS 5.4), published 2025-10-16
- [CVE-2025-58073](https://rewindex.com/cve/CVE-2025-58073.md) Arbitrary Mattermost Team can be joined by manipulating the OAuth state (CVSS 8.1), published 2025-10-16
- [CVE-2025-55035](https://rewindex.com/cve/CVE-2025-55035.md) Mattermost Desktop DoS when user has basic authentication server configured (CVSS 6.1), published 2025-10-16

## Cite this

Mattermost posted 0 status incidents in October 2025 (0 major or critical); 0 price changes and 0 notable page changes observed.

- Canonical URL: https://rewindex.com/company/mattermost/2025/10
- Citation: Mattermost, “Mattermost in October 2025” (2025-10-01 00:00 UTC). Archived by Rewindex: https://rewindex.com/company/mattermost/2025/10 (CC BY 4.0).
- Markdown link: `[Mattermost: Mattermost in October 2025 (2025-10-01)](https://rewindex.com/company/mattermost/2025/10)`


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Canonical: https://rewindex.com/company/mattermost/2025/10 · Markdown: https://rewindex.com/company/mattermost/2025/10.md · Data licensed CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/) · Generated 2026-11-04T13:29:44.433Z