Medium
Public channel post content accessible without membership when compliance export is enabled
Type: advisorySources: OSV
Mattermost fails to check if compliance export is enabled when fetching posts of public channels allowing a user that is not a member of the public channel to fetch the posts, which will not be audited in the compliance export.
- Products
- Not specified
- Affected versions
- Not specified
- Fixed versions
- Not specified
- CVEs
- CVE-2024-1887
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 2 Nov 2026, 19:45 UTC · Revision 1
Source evidence
Public channel post content accessible without membership when compliance export is enabled
core-osv · Original sourcePublished 29 Feb 2024, 08:05 UTC
Mattermost fails to check if compliance export is enabled when fetching posts of public channels allowing a user that is not a member of the public channel to fetch the posts, which will not be audited in the compliance export.
osv:CVE-2024-1887
Complete source record
{
"id": "4424962de360f01a6666dd11dec193d2ab894deee9d3cee44a9b9be2b5331baa",
"url": "https://osv.dev/vulnerability/CVE-2024-1887",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "Public channel post content accessible without membership when compliance export is enabled",
"summary": "Mattermost fails to check if compliance export is enabled when fetching posts of public channels allowing a user that is not a member of the public channel to fetch the posts, which will not be audited in the compliance export.",
"evidence": "osv:CVE-2024-1887",
"products": [],
"severity": "medium",
"structured": {
"id": "CVE-2024-1887",
"aliases": [
"CVE-2024-1887",
"GHSA-fx48-xv6q-6gp3",
"GO-2024-2591"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:L/A:N"
}
],
"affected": [
{
"ranges": [
{
"repo": "https://github.com/mattermost/mattermost",
"type": "GIT",
"events": [
{
"introduced": "0"
},
{
"fixed": "4c83724516242843802cc75840b08ead6afbd37b"
},
{
"introduced": "b47be1c0f5787562ddf430dd5c5b8b3c35748b06"
},
{
"fixed": "cf3252f5bf7a8ecd29403c873b05c70c3b20e920"
},
{
"introduced": "7bf5dcb8fb7f05db9a7a6a9be608ac0fe1405351"
},
{
"fixed": "d60d75b3f5755ac1be0d5ca2cce75e775d1a4a95"
}
],
"database_specific": {
"extracted_events": [
{
"cpe": "cpe:2.3:a:mattermost:mattermost_server:*:*:*:*:*:*:*:*",
"range": [
{
"introduced": "0"
},
{
"fixed": "8.1.9"
}
],
"source": "CPE_RANGE"
},
{
"cpe": "cpe:2.3:a:mattermost:mattermost_server:*:*:*:*:*:*:*:*",
"range": [
{
"introduced": "9.2.0"
},
{
"fixed": "9.2.5"
}
],
"source": "CPE_RANGE"
},
{
"cpe": "cpe:2.3:a:mattermost:mattermost_server:*:*:*:*:*:*:*:*",
"range": [
{
"introduced": "9.3.0"
},
{
"fixed": "9.3.1"
}
],
"source": "CPE_RANGE"
}
]
}
}
],
"versions": [
"v9.3.1-rc2",
"v9.2.5-rc2",
"v8.1.9-rc2",
"v8.1.9-rc1",
"v9.2.5-rc1",
"v9.3.1-rc1",
"@mattermost/types@9.3.0",
"@mattermost/client@9.3.0",
"v8.1.8",
"v9.2.4",
"v8.1.8-rc2",
"v9.2.4-rc1",
"v8.1.8-rc1",
"v9.3.0-rc2",
"v9.3.0",
"v8.1.7-rc3",
"v8.1.7",
"v8.1.7-rc2",
"v9.2.3-rc1",
"v9.2.3",
"v8.1.7-rc1",
"v8.1.6-rc1",
"v8.1.6",
"v9.2.2",
"v8.1.5-rc2",
"v8.1.5",
"v8.1.5-rc1",
"v9.2.1",
"v9.2.0-rc2",
"v9.2.0",
"@mattermost/types@9.2.0",
"@mattermost/client@9.2.0",
"v8.1.4-rc2",
"v8.1.4",
"v8.1.4-rc1",
"v8.1.3-rc2",
"v8.1.3",
"v8.1.3-rc1",
"v8.1.2-rc2",
"v8.1.2",
"v8.1.2-rc1",
"v8.1.1-rc2",
"v8.1.1",
"@mattermost/types@8.1.1",
"@mattermost/client@8.1.1",
"v8.1.1-rc1",
"v8.1.0-rc2",
"v8.1.0",
"cloud-2023-07-26-1",
"server/public/v0.0.5",
"cloud-2022-11-24-1",
"cloud-2022-11-11-1",
"cloud-2022-10-06-1",
"cloud-2022-09-08-1",
"cloud-2022-08-10-1",
"cloud-2022-07-20-1",
"v5.2.0-rc2",
"v5.2.0-rc1",
"v5.1.0-rc1",
"v5.0.0-rc1",
"v4.10.0-rc1",
"v4.9.0-rc1",
"v4.8.0-rc1",
"v4.7.0-rc1",
"v4.6.0-rc2",
"v4.6.0-rc1",
"v4.5.0-rc1",
"v4.4.0-rc1",
"v4.3.0-rc1",
"v4.2.0-rc1",
"v0.5.0"
],
"database_specific": {
"source": "https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2024-1887.json"
}
}
],
"modified": "2026-10-28T02:30:22.950569047Z",
"provider": "osv",
"references": [
"https://mattermost.com/security-updates",
"https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/1xxx/CVE-2024-1887.json",
"https://nvd.nist.gov/vuln/detail/CVE-2024-1887"
],
"provider_metadata": {
"cwe_ids": [
"CWE-284"
],
"cna_assigner": "Mattermost",
"unresolved_ranges": [
{
"extracted_events": [
{
"range": [
{
"last_affected": "8.1.8"
},
{
"last_affected": "9.2.4"
},
{
"last_affected": "9.3.0"
}
],
"source": "AFFECTED_FIELD",
"strategy": "StandardRange"
}
]
}
],
"osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2024/1xxx/CVE-2024-1887.json"
}
},
"related_cves": [
{
"value": "CVE-2024-1887",
"evidence": "/id"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 489319,
"published_at": "2024-02-29T08:05:29.776+00:00"
}