GHSA-m3p3-8frq-q7qh

Source

https://github.com/advisories/GHSA-m3p3-8frq-q7qh

Import Source

https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/05/GHSA-m3p3-8frq-q7qh/GHSA-m3p3-8frq-q7qh.json

JSON Data

https://api.test.osv.dev/v1/vulns/GHSA-m3p3-8frq-q7qh

Aliases

Published

2026-05-18T09:31:47Z

Modified

2026-06-25T23:11:15Z

Severity

4.3 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L CVSS Calculator

Summary

Mattermost doesn't limit the size of the request body on the start meeting API endpoint

Details

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

Database specific

{
    "cwe_ids": [
        "CWE-770"
    ],
    "github_reviewed": true,
    "github_reviewed_at": "2026-06-01T15:51:34Z",
    "nvd_published_at": "2026-05-18T08:16:13Z",
    "severity": "MODERATE"
}

References

Affected packages

github.com/mattermost/mattermost-server

Package

Name: github.com/mattermost/mattermost-server; View open source insights on deps.dev
Purl: pkg:golang/github.com/mattermost/mattermost-server

Affected ranges

Type: SEMVER
Events: Introduced

11.5.0

Fixed

11.5.2

Database specific

source

"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/05/GHSA-m3p3-8frq-q7qh/GHSA-m3p3-8frq-q7qh.json"

github.com/mattermost/mattermost-server

Package

Name: github.com/mattermost/mattermost-server; View open source insights on deps.dev
Purl: pkg:golang/github.com/mattermost/mattermost-server

Affected ranges

Type: SEMVER
Events: Introduced

10.11.0

Fixed

10.11.14

Database specific

source

"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/05/GHSA-m3p3-8frq-q7qh/GHSA-m3p3-8frq-q7qh.json"

github.com/mattermost/mattermost-server

Package

Name: github.com/mattermost/mattermost-server; View open source insights on deps.dev
Purl: pkg:golang/github.com/mattermost/mattermost-server

Affected ranges

Type: SEMVER
Events: Introduced

11.4.0

Fixed

11.4.4

Database specific

source

"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/05/GHSA-m3p3-8frq-q7qh/GHSA-m3p3-8frq-q7qh.json"

github.com/mattermost/mattermost-plugin-msteams-meetings

Package

Name: github.com/mattermost/mattermost-plugin-msteams-meetings; View open source insights on deps.dev
Purl: pkg:golang/github.com/mattermost/mattermost-plugin-msteams-meetings

Affected ranges

Type: SEMVER
Events: Introduced

0 Unknown introduced version / All previous versions are affected

Fixed

1.1.1-0.20260213105619-c5892dd169de

Database specific

source

"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2026/05/GHSA-m3p3-8frq-q7qh/GHSA-m3p3-8frq-q7qh.json"