Mattermost versions 10.4.x <= 10.4.2, 10.5.x <= 10.5.0, 9.11.x <= 9.11.10 fail to properly validate the props used by the RetrospectivePost custom post type in the Playbooks plugin, which allows an attacker to create a specially crafted post with maliciously crafted props and cause a denial of service (DoS) of the web app for all users.
{
"osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2025/41xxx/CVE-2025-41395.json",
"unresolved_ranges": [
{
"extracted_events": [
{
"introduced": "10.4.0"
},
{
"last_affected": "10.4.2"
},
{
"last_affected": "10.5.0"
},
{
"introduced": "9.11.0"
},
{
"last_affected": "9.11.10"
}
],
"source": "AFFECTED_FIELD"
}
],
"cwe_ids": [
"CWE-1287"
],
"cna_assigner": "Mattermost"
}{
"cpe": "cpe:2.3:a:mattermost:mattermost_server:*:*:*:*:*:*:*:*",
"extracted_events": [
{
"introduced": "9.11.0"
},
{
"fixed": "9.11.11"
},
{
"introduced": "10.4.0"
},
{
"fixed": "10.4.3"
},
{
"introduced": "10.5.0"
},
{
"fixed": "10.5.1"
}
],
"source": "CPE_RANGE"
}