CVEvulnerability
CVE-2026-72915
7.5 HIGH
Official page ↗
- Status
- Deferred
- Published
- 2026-08-10
- Last modified
- 2026-09-09
- Assigner
- [email protected]
- CVSS 3.1 ([email protected])
- 7.5 HIGH — CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N
- Weaknesses
- CWE-200
Description
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.
Related
Weakness · CWE (1)
- CWE-200 Exposure of Sensitive Information to an Unauthorized Actor weakness
References
- https://github.com/mastodon/mastodon/commit/467c933459c7d0e5513475b9e4888afaedfb1074 github.com
- https://github.com/mastodon/mastodon/commit/930aa9fee26bf9eaefe27826fa1061288d83373b github.com
- https://github.com/mastodon/mastodon/releases/tag/v4.6.4 github.com
- https://github.com/mastodon/mastodon/releases/tag/v4.7.0-beta.1 github.com
- https://github.com/mastodon/mastodon/security/advisories/GHSA-hx34-2pfw-2qfj github.com