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High severity7.5NVD Advisory· Published Jun 19, 2020· Updated Jun 17, 2026

CVE-2019-20857

CVE-2019-20857

Description

An issue was discovered in Mattermost Server before 5.16.0. It allows attackers to cause a denial of service (markdown renderer hang) via many backtick characters.

AI Insight

LLM-synthesized narrative grounded in this CVE's description and references.

Affected products

3
  • Mattermost/Serverdescription
  • Mattermost/Mattermostllm-fuzzy2 versions
    <5.16.0+ 1 more
    • (no CPE)range: <5.16.0
    • cpe:2.3:a:mattermost:mattermost_server:*:*:*:*:*:*:*:*range: <5.16.0

Patches

Vulnerability mechanics

References

1

News mentions

0

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