AUGUST 4, 2026
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Case File

CVE-2022-3257

LOW · CVSS 3.1 EPSS 1.14%

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2022-09-23 · Last synced 2026-08-04

CyberRota Analysis

This is a low severity vulnerability with a CVSS score of 3.1. Exploitation may require the attacker to be authenticated. It may lead to a denial-of-service condition.

CVE
CVE-2022-3257
Severity
LOW
CVSS
3.1
EPSS
1.14%

Original NVD Description

Mattermost version 7.1.x and earlier fails to sufficiently process a specifically crafted GIF file when it is uploaded while drafting a post, which allows authenticated users to cause resource exhaustion while processing the file, resulting in server-side Denial of Service.

Related CVEs

Other vulnerabilities affecting the same vendor(s)