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TI-2024-35251 Aliases CVE-2024-52591

Missing validation allows spoofed profiles and notes in Misskey

Priority MEDIUM 44CWE-20Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Attack requirements
None
Impact type
—
Confidentiality · integrity · availability
Low · High · None
Fix status
Fixed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA.

Summary

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.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00315 24th percentileScored 2026-11-07
Fix Fixed misskey (misskey-dev): 2024.11.0-alpha.3

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
Yes
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
misskey-devmisskeybefore 2024.11.0-alpha.32024.11.0-alpha.3Patch availableCNA
  • misskey Vendormisskey-dev Affected before 2024.11.0-alpha.3 Fixed in 2024.11.0-alpha.3 Patch available CNA

CPE configurations NVD · 4

CPEVersionsRoleVendor
cpe:2.3:a:misskey:misskey:*:*:*:*:*:*:*:*before 2024.11.0Vulnerablemisskey-dev
cpe:2.3:a:misskey:misskey:2024.11.0:alpha0:*:*:*:*:*:*2024.11.0 alpha0Vulnerablemisskey-dev
cpe:2.3:a:misskey:misskey:2024.11.0:alpha1:*:*:*:*:*:*2024.11.0 alpha1Vulnerablemisskey-dev
cpe:2.3:a:misskey:misskey:2024.11.0:alpha2:*:*:*:*:*:*2024.11.0 alpha2Vulnerablemisskey-dev
  • cpe:2.3:a:misskey:misskey:*:*:*:*:*:*:*:* Versions before 2024.11.0 Vulnerable ·misskey-dev
  • cpe:2.3:a:misskey:misskey:2024.11.0:alpha0:*:*:*:*:*:* Versions 2024.11.0 alpha0 Vulnerable ·misskey-dev
  • cpe:2.3:a:misskey:misskey:2024.11.0:alpha1:*:*:*:*:*:* Versions 2024.11.0 alpha1 Vulnerable ·misskey-dev
  • cpe:2.3:a:misskey:misskey:2024.11.0:alpha2:*:*:*:*:*:* Versions 2024.11.0 alpha2 Vulnerable ·misskey-dev

Remediation

  • Fix · CNA misskey (misskey-dev) Fixed in 2024.11.0-alpha.3

Timeline

  1. 2026-10-02 Threatist record created from CVE-2024-52591

References

Advisory 1

  • TI-2025-18599 Misskey CSRF vulnerability due to insecure configuration of authentication cookie attributes CVSS 3.1HIGH 8.2
  • TI-2025-29081 Misskey CSS Style Injection Vulnerability In `MkUrlPreview` CVSS 3.1HIGH 7.2
  • TI-2025-40906 Misskey has a login rate limit bypass via spoofed X-Forwarded-For header CVSS 4.0MEDIUM 6.9
  • TI-2025-29276 Misskey Directory Traversal Vulnerability in AiScript via `Mk:api` CVSS 3.1HIGH 7.5
  • TI-2025-40839 misskey.js's export data contains private post data CVSS 4.0HIGH 7.1
  • TI-2026-22705 Misskey lacks proper authorization checks and input validation CVSS 4.0CRITICAL 9.2
See all 26 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences