VULNERABILITY INTELLIGENCE
CVE-2019-20871
CVSS score7.5 HIGH
EPSS probability1.11%
CISA KEVNot currently listed
Published2020-06-19
Last modified2026-06-17
CVSS vectorCVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
Description
An issue was discovered in Mattermost Server before 5.9.0, 5.8.1, 5.7.3, and 4.10.8. The Markdown library allows catastrophic backtracking.
Primary references
- cve@mitre.org — Vendor Advisory
- af854a3a-2127-422b-91ae-364da2661108 — Vendor Advisory