| Package | Affected versions | Patched versions |
|---|---|---|
| mastodon | ≥ 2.6.0, < 4.1.18≥ 4.2.0, < 4.2.10 | 4.1.184.2.10 |
Mastodon is a self-hosted, federated microblogging platform. Starting in version 2.6.0 and prior to versions 4.1.18 and 4.2.10, by crafting specific activities, an attacker can extend the audience of a post they do not own to other Mastodon users on a target server, thus gaining access to the contents of a post not intended for them. Versions 4.1.18 and 4.2.10 contain a patch for this issue.
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