CVE-2024-37903

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.

CVSS v3 8.2 HIGH

8.2^/10

CVSS v3 : HIGH

Vector :

Exploitability : 3.9 / Impact : 4.2

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact HIGH

Integrity Impact LOW

Availability Impact NONE

Scope UNCHANGED

References

Link	Resource
https://github.com/mastodon/mastodon/commit/a1c7aae28aecf06659c5b18cfa131b37cd1512a3	Patch
https://github.com/mastodon/mastodon/commit/d4bf22b632ea8b1174375c4966a6768ab66393b6	Patch
https://github.com/mastodon/mastodon/releases/tag/v4.1.18	Release Notes
https://github.com/mastodon/mastodon/releases/tag/v4.2.10	Release Notes
https://github.com/mastodon/mastodon/security/advisories/GHSA-xjvf-fm67-4qc3	Vendor Advisory
https://github.com/mastodon/mastodon/commit/a1c7aae28aecf06659c5b18cfa131b37cd1512a3	Patch
https://github.com/mastodon/mastodon/commit/d4bf22b632ea8b1174375c4966a6768ab66393b6	Patch
https://github.com/mastodon/mastodon/releases/tag/v4.1.18	Release Notes
https://github.com/mastodon/mastodon/releases/tag/v4.2.10	Release Notes
https://github.com/mastodon/mastodon/security/advisories/GHSA-xjvf-fm67-4qc3	Vendor Advisory

Configurations

Configuration 1 (hide)

OR	cpe:2.3:a:joinmastodon:mastodon::::::::
	cpe:2.3:a:joinmastodon:mastodon::::::::

History

No history.

Information

Published : 2024-07-05 18:15

Updated : 2025-06-24 16:04

NVD link : CVE-2024-37903

Mitre link : CVE-2024-37903

CVE.ORG link : CVE-2024-37903

JSON object : View

Products Affected

joinmastodon

mastodon

CWE

CWE-862

Missing Authorization

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