Description

Mattermost versions 11.3.x <= 11.3.0 fail to preserve the redacted state of burn-on-read posts during deletion which allows channel members to access unrevealed burn-on-read message contents via the WebSocket post deletion event.. Mattermost Advisory ID: MMSA-2026-00579

INFO

Published Date :

2026-03-16T11:58:09.834Z

Last Modified :

2026-03-16T13:49:55.812Z

Source :

Mattermost
AFFECTED PRODUCTS

The following products are affected by CVE-2026-2578 vulnerability.

Vendors Products
Mattermost
  • Mattermost Server
REFERENCES

Here, you will find a curated list of external links that provide in-depth information to CVE-2026-2578.

URL Resource
https://mattermost.com/security-updates cve-icon cve-icon
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CVSS Vulnerability Scoring System

Detailed values of each vector for above chart.
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