CVE-2025-55070

unknown

Published 2025-11-14 · Modified 2026-03-03

CVSS v3

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CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:N/A:N

CVSS v2

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VIR risk

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Description

Mattermost does not enforce MFA on WebSocket connections in github.com/mattermost/mattermost-server

Predictions

Exploit likelihood

30%

Patch ETA

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Heuristic predictions, AS-IS, for prioritization only.

Mitigations

No vendor mitigations ingested yet for this CVE. The mitigation-content worker queues fetches as references arrive — check back in a few minutes, or see the references list below.

Package impact

Ecosystem	Package	Vulnerable	Fixed
Go	github.com/mattermost/mattermost-server	`<11.1.0`	`11.1.0`
Go	github.com/mattermost/mattermost/server/v8	`<8.0.0-20250912063506-7d8b7b5e4a60`	`8.0.0-20250912063506-7d8b7b5e4a60`
Go	github.com/mattermost/mattermost-server	`<11.1.0+incompatible`	`11.1.0+incompatible`
Go	github.com/mattermost/mattermost-server/v5
Go	github.com/mattermost/mattermost-server/v6

References

Verify integrity in audit chain (admin only). AS-IS.