GHSA-x6mw-hf2j-vqpc

Suggest an improvement
Source
https://github.com/advisories/GHSA-x6mw-hf2j-vqpc
Import Source
https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2022/05/GHSA-x6mw-hf2j-vqpc/GHSA-x6mw-hf2j-vqpc.json
JSON Data
https://api.osv.dev/v1/vulns/GHSA-x6mw-hf2j-vqpc
Aliases
Published
2022-05-24T17:21:03Z
Modified
2026-02-26T18:56:01.453798Z
Severity
  • 5.3 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L CVSS Calculator
Summary
Mattermost Server is vulnerable to channel invisibility DoS via misformatted post
Details

An issue was discovered in Mattermost Server before 4.3.0, 4.2.1, and 4.1.2. It allows attackers to cause a denial of service (channel invisibility) via a misformated post.

Database specific 
{
    "cwe_ids": [
        "CWE-20"
    ],
    "github_reviewed_at": "2026-01-05T20:56:18Z",
    "nvd_published_at": "2020-06-19T18:15:00Z",
    "severity": "MODERATE",
    "github_reviewed": true
}
References

Affected packages

Go
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
0Unknown introduced version / All previous versions are affected
Fixed
4.1.2-0.20171013141717-ee57a5829ab1

Database specific

source 
"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2022/05/GHSA-x6mw-hf2j-vqpc/GHSA-x6mw-hf2j-vqpc.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
4.2.0
Fixed
4.2.1-0.20171013140502-b3e4b0ac9168

Database specific

source 
"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2022/05/GHSA-x6mw-hf2j-vqpc/GHSA-x6mw-hf2j-vqpc.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
4.3.0-rc1
Fixed
4.3.0

Database specific

source 
"https://github.com/github/advisory-database/blob/main/advisories/github-reviewed/2022/05/GHSA-x6mw-hf2j-vqpc/GHSA-x6mw-hf2j-vqpc.json"