Medium severity4.3NVD Advisory· Published May 18, 2026· Updated May 18, 2026
CVE-2026-2325
CVE-2026-2325
Description
Mattermost versions 11.5.x <= 11.5.1, 10.11.x <= 10.11.13, 11.4.x <= 11.4.3 fail to limit the size of the request body on the start meeting API endpoint, which allows an authenticated attacker to cause resource exhaustion or denial of service via a crafted oversized HTTP POST request to {{/api/v1/meetings}}.. Mattermost Advisory ID: MMSA-2026-00608
AI Insight
LLM-synthesized narrative grounded in this CVE's description and references.
Affected packages
Versions sourced from the GitHub Security Advisory.
| Package | Affected versions | Patched versions |
|---|---|---|
github.com/mattermost/mattermost-serverGo | >= 11.5.0, < 11.5.2 | 11.5.2 |
github.com/mattermost/mattermost-serverGo | >= 10.11.0, < 10.11.14 | 10.11.14 |
github.com/mattermost/mattermost-serverGo | >= 11.4.0, < 11.4.4 | 11.4.4 |
github.com/mattermost/mattermost-plugin-msteams-meetingsGo | < 1.1.1-0.20260213105619-c5892dd169de | 1.1.1-0.20260213105619-c5892dd169de |
Affected products
4cpe:2.3:a:mattermost:mattermost_server:*:*:*:*:*:*:*:*+ 1 more
- cpe:2.3:a:mattermost:mattermost_server:*:*:*:*:*:*:*:*range: >=10.11.0,<10.11.14
- (no CPE)range: 11.5.x <= 11.5.1, 10.11.x <= 10.11.13, 11.4.x <= 11.4.3
- ghsa-coords2 versionspkg:golang/github.com/mattermost/mattermost-plugin-msteams-meetingspkg:golang/github.com/mattermost/mattermost-server
< 1.1.1-0.20260213105619-c5892dd169de+ 1 more
- (no CPE)range: < 1.1.1-0.20260213105619-c5892dd169de
- (no CPE)range: >= 11.5.0, < 11.5.2
Patches
Vulnerability mechanics
References
4News mentions
0No linked articles in our index yet.