Description
Mastodon before 3.3.2 and 3.4.x before 3.4.6 has incorrect access control because it does not compact incoming signed JSON-LD activities. (JSON-LD signing has been supported since version 1.6.0.)
References (2)
Core 2
Core References
Release Notes, Third Party Advisory x_refsource_confirm
https://github.com/mastodon/mastodon/releases/tag/v3.4.6
Release Notes, Third Party Advisory x_refsource_confirm
https://github.com/mastodon/mastodon/releases/tag/v3.3.2
Scores
CVSS v3
9.8
EPSS
0.0141
EPSS Percentile
69.4%
Attack Vector
NETWORK
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H
Details
CWE
CWE-863
Status
published
Products (1)
joinmastodon/mastodon
< 3.3.2
Published
Feb 03, 2022
Tracked Since
Feb 18, 2026