PT-2026-28425 · Mattermost · Mattermost Plugins

Thecybertantrik · CVE-2026-3116 · Publicado 2026-03-26 · Atualizado 2026-03-26

Positive Technologies (AI Summary)

CVSS v3.1

4.9

Média

Vetor base

AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:N/A:H

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 affects the processing of requests sent to the /webhooks API endpoint. The request size is not validated, which can lead to a denial-of-service condition.

Recommendations Update to a version of Mattermost Plugins greater than 11.4.

Exploit

Correção

DoS

Resource Exhaustion

Enumeração de Fraquezas

CWE-400

Identificadores relacionados

CVE-2026-3116

Produtos afetados

Mattermost Plugins

Referências · 6

• 🔥 https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/3xxx/CVE-2026-3116.json · Exploit
• https://nvd.nist.gov/vuln/detail/CVE-2026-3116 · Nota de Segurança
• https://osv.dev/vulnerability/CVE-2026-3116 · Aviso do Fabricante
• https://twitter.com/VulmonFeeds/status/2037245586311626909 · Publicação no Twitter
• https://mattermost.com/security-updates · Aviso do Fabricante
• https://cve.mitre.org/cgi-bin/cvename.cgi?name=CVE-2026-3116 · Nota