CVE-2019-20871

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.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTNIST
7.5 HIGH
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
mitreCNA
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CVEADP
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Base Score
CVSS 3.x
EPSS Score
Percentile: 59%
VendorProductVersion
mattermostmattermost_server
𝑥
< 4.10.8
mattermostmattermost_server
5.7.0 ≤
𝑥
< 5.7.3
mattermostmattermost_server
5.8.0 ≤
𝑥
< 5.8.1
mattermostmattermost_server
5.9.0:rc1
mattermostmattermost_server
5.9.0:rc2
mattermostmattermost_server
5.9.0:rc3
mattermostmattermost_server
5.9.0:rc4
𝑥
= Vulnerable software versions
References
https://mattermost.com/security-updates/
https://mattermost.com/security-updates/