VULNERABILITY INTELLIGENCE

CVE-2019-20866

CVSS score5.3 MEDIUM
EPSS probability0.92%
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:L/I:N/A:N

Description

An issue was discovered in Mattermost Server before 5.12.0. Use of a Proxy HTTP header, rather than the source address in an IP packet header, for obtaining IP address information was mishandled.

Weakness classification

  • nvd@nist.gov: CWE-444

Primary references