🛡️ CVE-2024-52591
🔴 CVSS 9.3 — Critical ✅ No Known Exploit CWE-20 NVD
9.3
CVSS Score
0 Low4 Medium7 High9 Critical10

Description

Misskey is an open source, federated social media platform. In affected versions missing validation in `ApRequestService.signedGet` and `HttpRequestService.getActivityJson` allows an attacker to create fake user profiles and forged notes. The spoofed users will appear to be from a different instance than the one where they actually exist, and the forged notes will appear to be posted by a different user. Vulnerable Misskey instances will accept the spoofed objects as valid, allowing an attacker to impersonate other users and instances. The attacker retains full control of the spoofed user / note and can interact like a real account. This issue has been addressed in version 2024.11.0-alpha.3. Users are advised to upgrade. There are no known workarounds for this vulnerability.

Details

Severity CRITICAL
CVSS Score 9.3
CVSS Vector CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:H/A:N
CWE CWE-20
Public Exploit ✅ No
Source NVD
Published 2024-12-18
Updated 2026-06-02
Modified 2025-11-26
Fix URL N/A

Affected Packages

Software From version Fixed in
misskey

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