CVE-2025-20621
unknown
CVSS v3
—
CVSS v2
—
VIR risk
—
Description
Mattermost webapp crash via a crafted post in github.com/mattermost/mattermost-server
Predictions
Exploit likelihood
30%
Patch ETA
—
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/v8 | >=10.2.0,<10.2.1 | 10.2.1 |
| Go | github.com/mattermost/mattermost/server/v8 | >=10.1.0,<10.1.4 | 10.1.4 |
| Go | github.com/mattermost/mattermost/server/v8 | >=10.0.0,<10.0.4 | 10.0.4 |
| Go | github.com/mattermost/mattermost/server/v8 | >=9.11.0,<9.11.6 | 9.11.6 |
| Go | github.com/mattermost/mattermost/server/v8 | <8.0.0-20241127161322-25ff7a3779a5 | 8.0.0-20241127161322-25ff7a3779a5 |
| Go | github.com/mattermost/mattermost-server | >=10.2.0+incompatible,<10.2.1+incompatible | 9.11.6+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.