CVE-2026-14298 | BDVDB-2026-358609 Detail

Description#

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 limit decompressed content size and enforce the configured maximum file size in the Boards archive import handler, which allows an authenticated user to cause memory exhaustion or unbounded disk consumption via a crafted .boardarchive file uploaded to the import endpoint.. Mattermost Advisory ID: MMSA-2026-00713

Impact#

Weaknesses#

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Exploit#

History#

1. Version 12026-08-13Record published in the CVE List.
2. Version 22026-09-14Most recent update recorded in the CVE List.