CVE-2024-52590 Missing validation allows spoofed profiles in Misskey

What is CVE-2024-52590?

CVE-2024-52590 is a high-severity vulnerability in misskey-dev misskey, published on 18 Dec 2024.

Official description

Misskey is an open source, federated social media platform. In affected versions missing validation in `ApRequestService.signedGet` allows an attacker to create fake user profiles that appear to be from a different instance than the one where they actually exist. These profiles can be used to impersonate existing users from the target instance. Vulnerable Misskey instances will accept spoofed users as valid, allowing an attacker to impersonate users on another instance. Attackers have full control of the spoofed user and can post, renote, or otherwise 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.

Weakness: CWE-20

Which versions are affected by CVE-2024-52590?

It affects 1 product.

Products include Misskey Misskey.

How do I fix CVE-2024-52590?

No fix has been published for CVE-2024-52590 yet. Limit exposure of the affected software until one is available.

Is CVE-2024-52590 being exploited?

There is no known exploitation of CVE-2024-52590 in the wild and no public exploit code.

Other vulnerabilities in misskey-dev misskey

• CVE-2025-25306 Misskey's Incomplete Patch of CVE-2024-52591 Leads to Forgery of Federated Notes Critical 9.3
• CVE-2023-49079 Misskey's missing signature validation allows arbitrary users to impersonate any remote user. Critical 9.3
• CVE-2026-28431 Misskey lacks proper authorization checks and input validation Critical 9.2
• CVE-2023-52139 Misskey vulnerable to improper authorization when accessing with third-party application Critical 9.1
• CVE-2024-52591 Missing validation allows spoofed profiles and notes in Misskey High 8.8

Sources

• CVE record
• NVD
• OSV
• GitHub advisory
• How this page is made

Also known as GHSA-7vgr-p3vc-p4h2.