AUGUST 4, 2026
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Case File

CVE-2025-9078

MEDIUM · CVSS 4.3 EPSS 0.14%

Source: NVD + CISA KEV + EPSS (historical backfill) · Published 2025-09-15 · Last synced 2026-08-04

CyberRota Analysis

This is a medium severity vulnerability with a CVSS score of 4.3. Exploitation may require the attacker to be authenticated.

CVE
CVE-2025-9078
Severity
MEDIUM
CVSS
4.3
EPSS
0.14%

Original NVD Description

Mattermost versions 10.8.x <= 10.8.3, 10.5.x <= 10.5.8, 9.11.x <= 9.11.17, 10.10.x <= 10.10.1, 10.9.x <= 10.9.3 fail to properly validate cache keys for link metadata which allows authenticated users to access unauthorized posts and poison link previews via hash collision attacks on FNV-1 hashing

Related CVEs

Other vulnerabilities affecting the same vendor(s)