PatchTheCVECVE-2024-52591: Misskey is an open source, federated social media platform
CVE-2024-52591 is a critical-severity flaw (CVSS 9.3) affecting misskey. Below: why it ranks where it does, which versions are affected, what to do, and the exact commands.
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 t
Why this priority
- Critical severity
- Remotely exploitable, no login, no user action
A fixed release or distro patch exists.
Risk facts
| CVSS score | 9.3 (Critical) |
| Attack vector | Network (remote) |
| Attack complexity | Low |
| Privileges needed | None |
| User interaction | None |
| EPSS exploit chance | 0.3% (top 76%) |
| CISA exploited list | No |
| Weakness | CWE-20 |
| Published | 2024-12-18 |
| Last modified | 2026-06-17 |
Last updated 2026-06-17 · Sources: CVE Program, NVD, CISA KEV, EPSS and vendor advisories · How we score
Am I affected?
Timeline
- Published CVE record published
- Updated Record last modified
Scores and fixes here are computed automatically from those and other public sources. Confirm with the vendor advisory before changing production systems.
Quick answers
How do I fix CVE-2024-52591?
misskey: upgrade to 2024.11.0. Exact commands for each OS are on this page.
Is CVE-2024-52591 being exploited?
CVE-2024-52591 is not on the CISA Known Exploited Vulnerabilities list at the time of the last update. Check again, as this can change.
What does CVE-2024-52591 affect?
CVE-2024-52591 affects misskey. Severity is critical (CVSS 9.3). 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. T
How urgent is CVE-2024-52591?
Priority 44/100. Critical severity; Remotely exploitable, no login, no user action
Related CVEs
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- CVE-2026-28432 HIGH 7.5 UPGRADE Misskey is an open source, federated social media platform
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