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Medium severity5.3NVD Advisory· Published Jun 19, 2020· Updated Jun 17, 2026

CVE-2018-21259

CVE-2018-21259

Description

An issue was discovered in Mattermost Server before 4.10.1, 4.9.4, and 4.8.2. It allows attackers to cause a denial of service (application hang) via a malformed link in a channel.

AI Insight

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

Affected products

3
  • Mattermost/Mattermost2 versions
    cpe:2.3:a:mattermost:mattermost_server:*:*:*:*:*:*:*:*+ 1 more
    • cpe:2.3:a:mattermost:mattermost_server:*:*:*:*:*:*:*:*range: <4.8.2
    • (no CPE)range: <4.10.1, <4.9.4, <4.8.2
  • Mattermost/Serverdescription

Patches

Vulnerability mechanics

References

1

News mentions

0

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