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.
Metrics
Affected Vendors & Products
References
History
Wed, 26 Nov 2025 16:30:00 +0000
| Type | Values Removed | Values Added |
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| First Time appeared |
Misskey
Misskey misskey |
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| CPEs | cpe:2.3:a:misskey:misskey:*:*:*:*:*:*:*:* cpe:2.3:a:misskey:misskey:2024.11.0:alpha0:*:*:*:*:*:* cpe:2.3:a:misskey:misskey:2024.11.0:alpha1:*:*:*:*:*:* cpe:2.3:a:misskey:misskey:2024.11.0:alpha2:*:*:*:*:*:* |
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| Vendors & Products |
Misskey
Misskey misskey |
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| Metrics |
cvssV3_1
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Mon, 14 Jul 2025 13:45:00 +0000
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| Metrics |
epss
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epss
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Thu, 19 Dec 2024 17:15:00 +0000
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| Metrics |
ssvc
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Wed, 18 Dec 2024 19:30:00 +0000
| Type | Values Removed | Values Added |
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| 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. | |
| Title | Missing validation allows spoofed profiles and notes in Misskey | |
| Weaknesses | CWE-20 | |
| References |
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| Metrics |
cvssV4_0
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Status: PUBLISHED
Assigner: GitHub_M
Published: 2024-12-18T19:20:31.238Z
Updated: 2024-12-19T17:08:34.023Z
Reserved: 2024-11-14T15:05:46.767Z
Link: CVE-2024-52591
Updated: 2024-12-19T17:08:28.923Z
Status : Analyzed
Published: 2024-12-18T20:15:23.697
Modified: 2025-11-26T16:25:19.597
Link: CVE-2024-52591
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