CVE-2026-11993
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.x <= 11.9.0, 11.8.x <= 11.8.4, 11.7.x <= 11.7.7, 10.11.x <= 10.11.22 fail to properly enforce the limit of concurrent files being processed and handled failed files, which allows a user with permission to upload files to spawn more goroutines than intended and block the indexing of other files via uploading heavy files constantly to the server.. Mattermost Advisory ID: MMSA-2026-00696
Affected Software
| Vendor | Product | Version Range | Status |
|---|---|---|---|
| Mattermost | Mattermost | 11.9.0 <= 11.9.0 | affected |
| Mattermost | Mattermost | 11.8.0 <= 11.8.4 | affected |
| Mattermost | Mattermost | 11.7.0 <= 11.7.7 | affected |
| Mattermost | Mattermost | 10.11.0 <= 10.11.22 | 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-770: CWE-770: Allocation of Resources Without Limits or Throttling
ADP Enrichment
CISA ADP Vulnrichment
- SSVC:
- Exploitation: none
- Automatable: no
- Technical Impact: partial
References
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