https://db.gcve.eu/rss/recent/all/10 Most recent entries from all 2026-09-30T15:57:34.284691+00:00 Vulnerability-Lookup info@gcve.eu python-feedgen Contains only the most 10 recent entries. https://db.gcve.eu/vuln/cve-2026-12882 CVE-2026-12882 — Mattermost Markdown autolink parsing denial of service 2026-09-30T15:57:34.292251+00:00

Affected: Mattermost

Mattermost versions 11.9.x <= 11.9.0, 11.8.x <= 11.8.4, 11.7.x <= 11.7.7, 10.11.x <= 10.11.22 fail to parse Markdown autolinks with unmatched trailing closing parentheses in linear time, which allows an authenticated user with permission to create posts to cause excessive server CPU consumption and degrade availability for other users via specially crafted post or message attachment content. Mattermost Advisory ID: MMSA-2026-00703