VULNERABILITY INTELLIGENCE

CVE-2023-2831

CVSS score4.3 MEDIUM
EPSS probability0.68%
CISA KEVNot currently listed
Published2023-06-16
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L

Description

Mattermost fails to unescape Markdown strings in a memory-efficient way, allowing an attacker to cause a Denial of Service by sending a message containing a large number of escaped characters.

Weakness classification

  • responsibledisclosure@mattermost.com: CWE-400
  • nvd@nist.gov: CWE-400

Primary references