Cloudanix VulnDB

CVE-2026-72915

High · 7.5

CVSS

7.5

EPSS

0.5%

Published

Aug 10, 2026

CISA due date

—

The record

Mastodon is a free, open-source social network server based on ActivityPub. From 4.6.0-beta.1 until 4.6.4 and 4.7.0-beta.1, any logged-in local user could use the show action in app/controllers/admin/collections_controller.rb to access personally identifying information about another local user in a collection because the controller used the general collection policy instead of the admin collection policy namespace. The exposed data included the other user's current email address and last-used IP address. This issue is fixed in versions 4.6.4 and 4.7.0-beta.1.

Affected packages

Ecosystem Package Introduced Fixed

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