CVE-2024-37903: Mastodon has improper authorship check on audience extension for existing posts
First published: Fri Jul 05 2024(Updated: )
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.
Credit: security-advisories@github.com
| Affected Software | Affected Version | How to fix |
|---|---|---|
| Mastodon | >=2.6.0<4.1.18>=4.2.0<4.2.10 |
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Reference Links
- https://github.com/mastodon/mastodon/security/advisories/GHSA-xjvf-fm67-4qc3
- https://github.com/mastodon/mastodon/commit/a1c7aae28aecf06659c5b18cfa131b37cd1512a3
- https://github.com/mastodon/mastodon/commit/d4bf22b632ea8b1174375c4966a6768ab66393b6
- https://github.com/mastodon/mastodon/releases/tag/v4.1.18
- https://github.com/mastodon/mastodon/releases/tag/v4.2.10
- agent/weakness
- agent/references
- agent/title
- agent/description
- agent/first-publish-date
- agent/type
- agent/severity
- agent/author
- agent/event
- collector/nvd-api
- source/NVD
- collector/mitre-cve
- source/MITRE
- agent/last-modified-date
- agent/source
- agent/softwarecombine
- agent/tags
- agent/guess-ai
- agent/software-canonical-lookup
- agent/software-canonical-lookup-request
- vendor/mastodon
- canonical/mastodon