Denial of Service (DoS)

Overview github.com/mattermost/mattermost/server/channels/app is a private-cloud Slack alternative Affected versions of this package are vulnerable to Denial of Service DoS due to insufficient validation of incoming request size in the webhook endpoint. An attacker can disrupt service availabilit...

EUVD-2026-16246

Mattermost Plugins versions =11.4 11.0.4 11.1.3 11.3.2 10.11.11.0 fail to validate incoming request size which allows an authenticated attacker to cause service disruption via the webhook endpoint. Mattermost Advisory ID: MMSA-2026-00589...

CVE-2026-3116

Mattermost Plugins versions =11.4 11.0.4 11.1.3 11.3.2 10.11.11.0 fail to validate incoming request size which allows an authenticated attacker to cause service disruption via the webhook endpoint. Mattermost Advisory ID: MMSA-2026-00589...

PT-2026-28425

Name of the Vulnerable Software and Affected Versions Mattermost Plugins versions 10.11.11.0 through 11.4 Description The software does not properly check the size of incoming requests, potentially allowing an authenticated attacker to disrupt service through the webhook endpoint. The issue affec...

Linux Distros Unpatched Vulnerability : CVE-2024-26980

The Linux/Unix host has one or more packages installed that are impacted by a vulnerability without a vendor supplied patch available. - ksmbd: fix slab-out-of-bounds in smb2allocaterspbuf If -ProtocolId is SMB2TRANSFORMPROTONUM, smb2 request size validation could be skipped. if request size is...

DEBIAN-CVE-2024-26980

In the Linux kernel, the following vulnerability has been resolved: ksmbd: fix slab-out-of-bounds in smb2allocaterspbuf If -ProtocolId is SMB2TRANSFORMPROTONUM, smb2 request size validation could be skipped. if request size is smaller than sizeofstruct smb2queryinforeq, slab-out-of-bounds read ca...

Denial Of Service (DoS)

github.com/mattermost/mattermost-plugin-playbooks is vulnerable to Denial of Service. The vulnerability is caused due to a lack of request size validation. An attacker can crash the server by sending multiple large size requests resulting in Denial of Service...

CVE-2022-31804

The CODESYS Gateway Server V2 does not verifiy that the size of a request is within expected limits. An unauthenticated attacker may allocate an arbitrary amount of memory, which may lead to a crash of the Gateway due to an out-of-memory condition...