CVE-2026-86348
4.3
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L
Summary
Mattermost versions <=11.9 11.0.9 11.4.8 11.7.7 10.22.11.0 fail to recover from handler panics, which allows an authenticated user to crash the plugin via a post-action request with an unexpected field type.. Mattermost Advisory ID: MMSA-2026-00701
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Mattermost | Mattermost | <=11.9 11.0.9 11.4.8 11.7.7 10.22.11.0 <= <=11.9 11.0.9 11.4.8 11.7.7 10.22.11.0 | affected |
| Mattermost | Mattermost | 11.10.0 | unaffected |
| Mattermost | Mattermost | 11.9.1 | unaffected |
| Mattermost | Mattermost | 11.8.5 | unaffected |
| Mattermost | Mattermost | 11.7.8 | unaffected |
| Mattermost | Mattermost | 10.11.23 | unaffected |
Weaknesses
- CWE-704: CWE-704: Incorrect Type Conversion or Cast
ADP Enrichment
CISA ADP Vulnrichment
- SSVC:
- Exploitation: none
- Automatable: no
- Technical Impact: partial
References
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