NetSight
low2.7

CVE-2026-93848

Mattermost versions 11.7.x <= 11.7.10 fail to apply outbound internal-connection filtering to the OpenID discovery endpoint request which allows a System Admin…

Impact

Mattermost versions 11.7.x <= 11.7.10 fail to apply outbound internal-connection filtering to the OpenID discovery endpoint request which allows a System Administrator to determine whether internal addresses and ports are reachable from the server via an unauthenticated login request that triggers the discovery fetch.. Mattermost Advisory ID: MMSA-2026-00774

Affected products

VendorProductAffected versions
MattermostMattermost Versions 11.7.X
through 11.7.10

Versions were read from the advisory text. No structured product data has been published for this record yet.

Weakness classification

References