CVE-2026-72915
HIGH
7,5
Source: [email protected]
Attack Vector: network
Attack Complexity: low
Privileges Required: none
User Interaction: none
Scope: unchanged
Confidentiality: high
Integrity: none
Availability: none
Description
AI Translation Available
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.
200
Exposure of Sensitive Information to an Unauthorized Actor
DraftCommon Consequences
Security Scopes Affected:
Confidentiality
Potential Impacts:
Read Application Data
Applicable Platforms
Technologies:
Not Technology-Specific, Web Based, Mobile
https://github.com/mastodon/mastodon/commit/467c933459c7d0e5513475b9e4888afaedf…
https://github.com/mastodon/mastodon/commit/930aa9fee26bf9eaefe27826fa1061288d8…
https://github.com/mastodon/mastodon/releases/tag/v4.6.4
https://github.com/mastodon/mastodon/releases/tag/v4.7.0-beta.1
https://github.com/mastodon/mastodon/security/advisories/GHSA-hx34-2pfw-2qfj