CVEvulnerability

CVE-2026-33869

4.8 MEDIUM Published 2026-03-27 Modified 2026-06-17 Official page ↗
Status
Analyzed
Published
2026-03-27
Last modified
2026-06-17
Assigner
[email protected]
CVSS 3.1 ([email protected])
4.8 MEDIUM — CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:L/A:L
Weaknesses
CWE-863

Description

Mastodon is a free, open-source social network server based on ActivityPub. In versions on the 4.5.x branch prior to 4.5.8 and on the 4.4.x branch prior to 4.4.15, an attacker that knows of a quote before it has reached a server can prevent it from being correctly processed on that server. The vulnerability has been patched in Mastodon 4.5.8 and 4.4.15. Mastodon 4.3 and earlier are not affected because they do not support quotes.

Affected configurations

• joinmastodon mastodon (>= 4.4.0 < 4.4.15) • joinmastodon mastodon (>= 4.5.0 < 4.5.8)

Related

Weakness · CWE (1)

  • CWE-863 Incorrect Authorization weakness

References