CVE-2023-2793

Stack exhaustion in PreparePostForClientWithEmbedsAndImages

State: Published
Severity: 6.5 Medium
Published: Jun 16, 2023
Updated: Dec 6, 2024
Reserved: May 18, 2023

Description

Mattermost fails to validate links on external websites when constructing a preview for a linked website, allowing an attacker to cause a denial-of-service by a linking to a specially crafted webpage in a message.

Scores

CVSS	Score	Vector	Source
3.1	6.5 Medium	CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H	Mattermost

Weaknesses

CWE-400 Uncontrolled Resource Consumption

Affected Products

Product	Versions
MattermostMattermost	7.8.2 and earlierAffected 7.9.1 and earlierAffected 7.10.1Not affected 7.8.3Not affected 7.9.2Not affected 7.10.0Affected

References

https://mattermost.com/security-updates/

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