GO-2026-5442 Mattermost doesn't enforce the PostEditTimeLimit on non-message post fields in github.com/mattermost/mattermost-server

Mattermost doesn't enforce the PostEditTimeLimit on non-message post fields in github.com/mattermost/mattermost-server...

GHSA-HW87-6JCQ-9F8Q Mattermost doesn't enforce the PostEditTimeLimit on non-message post fields

Mattermost versions 11.5.x = 11.5.1, 10.11.x = 10.11.13 fail to enforce the PostEditTimeLimit on non-message post fields which allows an authenticated user to modify post file attachments, props, and pin status after the edit window has expired via the post patch and update API endpoints...

Mattermost doesn't enforce the PostEditTimeLimit on non-message post fields

Mattermost versions 11.5.x = 11.5.1, 10.11.x = 10.11.13 fail to enforce the PostEditTimeLimit on non-message post fields which allows an authenticated user to modify post file attachments, props, and pin status after the edit window has expired via the post patch and update API endpoints...

CVE-2026-4053

CVE-2026-4053 affects Mattermost 11.5.x (11.5.0–11.5.1) and 10.11.x (10.11.0–10.11.13). The issue is that the system fails to enforce the PostEditTimeLimit on non‑message post fields, allowing an authenticated user to modify post file attachments, props, and pin status after the edit window has e...

PT-2026-41348

Name of the Vulnerable Software and Affected Versions Mattermost versions 11.5.0 through 11.5.1 Mattermost versions 10.11.0 through 10.11.13 Description An issue exists where the system fails to enforce the PostEditTimeLimit on non-message post fields. This allows an authenticated user to modify...