CVE-2026-48028

תיאור (מקור, אנגלית)

Mastodon is a free, open-source social network server based on ActivityPub. Prior to 4.5.10, 4.4.17, and 4.3.23, Mastodon's normalization of incoming activities signed with Linked-Data Signatures does not sufficiently protect the activities from a certain class of spoofing, allowing threat actors to remove JSON entries from valid signed activities from a third-party actor. This vulnerability is fixed in 4.5.10, 4.4.17, and 4.3.23.

מדדים

CVSS 3.1

6.5 (MEDIUM) מקור הציון: CNA CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:L

EPSS — סבירות ניצול

0% (אחוזון 000) נכון ל-13/8/2026

CWE

CWE-354

קישורים

• https://github.com/mastodon/mastodon/security/advisories/GHSA-53m7-2wrh-q839