CVE-2025-12689
CVE.org · Published
- Record status
- Published
- Identifier year (not publication year)
- 2025
- Source publication
- Source updated
- Imported by cveboard
- Source snapshot
- cve_2026-10-24_midnight_baseline ·
CNA source text (English)
DoS in Calls plugin via malformed UTF-8 in WebSocket request
Mattermost versions 11.0.x <= 11.0.4, 10.12.x <= 10.12.2, 10.11.x <= 10.11.6 fail to check WebSocket request field for proper UTF-8 format, which allows attacker to crash Calls plug-in via sending malformed request.
Scoped product and version facts
Fix information unknown; no fixed version is derived here. Missing information does not prove that no fix exists.
Exploitation unknown; this catalogue does not assess exploitation.
Mattermost
- Vendor
- Mattermost
- Product
- Mattermost
- Platforms
- Unknown
- Default status
unaffected
| Version (version) | Status (status) | Version scheme (versionType) | Exclusive end (lessThan) | Inclusive end (lessThanOrEqual) | Status changes (at → status) |
|---|---|---|---|---|---|
| 11.0.0 | affected | semver | Unavailable | 11.0.4 | None listed |
| 10.12.0 | affected | semver | Unavailable | 10.12.2 | None listed |
| 10.11.0 | affected | semver | Unavailable | 10.11.6 | None listed |
| 11.1.0 | unaffected | Unavailable | Unavailable | Unavailable | None listed |
| 11.0.5 | unaffected | Unavailable | Unavailable | Unavailable | None listed |
| 10.12.3 | unaffected | Unavailable | Unavailable | Unavailable | None listed |
| 10.11.7 | unaffected | Unavailable | Unavailable | Unavailable | None listed |