CVE-2023-5330

MEDIUM

Mattermost < 7.8.11 - Denial of Service via OpenGraph Cache Overflow

Title source: llm

Description

Mattermost fails to enforce a limit for the size of the cache entry for OpenGraph data allowing an attacker to send a specially crafted request to the /api/v4/opengraph filling the cache and turning the server unavailable.

References (1)

Core 1

Core References

Vendor Advisory

https://mattermost.com/security-updates

Scores

CVSS v3 4.3

EPSS 0.0012

EPSS Percentile 30.2%

Attack Vector NETWORK

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L

CISA SSVC

Vulnrichment

Exploitation none

Automatable no

Technical Impact partial

Details

CWE

CWE-770 CWE-400

Status published

Products (1)

mattermost/mattermost_server < 7.8.11

Published Oct 09, 2023

Tracked Since Feb 18, 2026