CVE-2025-14435

What it is

Mattermost versions 10.11.x <= 10.11.8, 11.1.x <= 11.1.1, 11.0.x <= 11.0.6 fail to prevent infinite re-renders on API errors which allows authenticated users to cause application-level DoS via triggering unbounded component re-render loops.

At a glance

Exploitability

Can be exploited over the network with a low-privilege account, but needs a user to act. High risk of service disruption.

Exploit odds

0.3% chance of exploitation in the next 30 days (EPSS).

Fix

A patch, advisory or fixed version is referenced. Upgrade or apply it.

Timeline

1. 2026-01-16 12:15 UTC PublishedDisclosed publicly on CVE.org and NVD
2. 2026-06-17 08:35 UTC Last updatedMost recent change to the record

Details

Published

2026-01-16 12:15 UTC

Last modified

2026-06-17 08:35 UTC

Exploit probability

0.3% · EPSS, next 30 days

Weakness

CWE-770 · Allocation without limits

Record status

Analyzed

Affected

• Mattermost Server < 10.11.9
• Mattermost Server < 11.0.7
• Mattermost Server < 11.1.2

Attack profile CVSS 3.1 · 6.8

Attack vector

Network

Complexity

Low

Privileges needed

Low

User interaction

Required

Scope

Changed

Confidentiality

None

Integrity

None

Availability

High