{"resultsPerPage":1,"startIndex":0,"totalResults":1,"format":"NVD_CVE","version":"2.0","timestamp":"2026-08-01T11:56:49.229","vulnerabilities":[{"cve":{"id":"CVE-2024-52591","sourceIdentifier":"security-advisories@github.com","published":"2024-12-18T20:15:23.697","lastModified":"2026-06-17T08:07:30.550","vulnStatus":"Analyzed","cveTags":[],"descriptions":[{"lang":"en","value":"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."},{"lang":"es","value":"Misskey es una plataforma de redes sociales federada de código abierto. En las versiones afectadas, la falta de validación en `ApRequestService.signedGet` y `HttpRequestService.getActivityJson` permite a un atacante crear perfiles de usuario falsos y notas falsificadas. Los usuarios falsificados parecerán ser de una instancia diferente a la que realmente existen, y las notas falsificadas parecerán haber sido publicadas por un usuario diferente. Las instancias vulnerables de Misskey aceptarán los objetos falsificados como válidos, lo que permite a un atacante hacerse pasar por otros usuarios e instancias. El atacante conserva el control total del usuario/nota falsificados y puede interactuar como una cuenta real. Este problema se ha solucionado en la versión 2024.11.0-alpha.3. Se recomienda a los usuarios que actualicen. No existen workarounds conocidos para esta vulnerabilidad."}],"affected":[{"source":"security-advisories@github.com","affectedData":[{"vendor":"misskey-dev","product":"misskey","versions":[{"version":"< 2024.11.0-alpha.3","status":"affected"}]}]}],"metrics":{"cvssMetricV40":[{"source":"security-advisories@github.com","type":"Secondary","cvssData":{"version":"4.0","vectorString":"CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:H/VA:N/SC:L/SI:N/SA:L/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X","baseScore":8.8,"baseSeverity":"HIGH","attackVector":"NETWORK","attackComplexity":"LOW","attackRequirements":"NONE","privilegesRequired":"NONE","userInteraction":"NONE","vulnConfidentialityImpact":"LOW","vulnIntegrityImpact":"HIGH","vulnAvailabilityImpact":"NONE","subConfidentialityImpact":"LOW","subIntegrityImpact":"NONE","subAvailabilityImpact":"LOW","exploitMaturity":"NOT_DEFINED","confidentialityRequirement":"NOT_DEFINED","integrityRequirement":"NOT_DEFINED","availabilityRequirement":"NOT_DEFINED","modifiedAttackVector":"NOT_DEFINED","modifiedAttackComplexity":"NOT_DEFINED","modifiedAttackRequirements":"NOT_DEFINED","modifiedPrivilegesRequired":"NOT_DEFINED","modifiedUserInteraction":"NOT_DEFINED","modifiedVulnConfidentialityImpact":"NOT_DEFINED","modifiedVulnIntegrityImpact":"NOT_DEFINED","modifiedVulnAvailabilityImpact":"NOT_DEFINED","modifiedSubConfidentialityImpact":"NOT_DEFINED","modifiedSubIntegrityImpact":"NOT_DEFINED","modifiedSubAvailabilityImpact":"NOT_DEFINED","Safety":"NOT_DEFINED","Automatable":"NOT_DEFINED","Recovery":"NOT_DEFINED","valueDensity":"NOT_DEFINED","vulnerabilityResponseEffort":"NOT_DEFINED","providerUrgency":"NOT_DEFINED"}}],"cvssMetricV31":[{"source":"nvd@nist.gov","type":"Primary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:L/I:H/A:N","baseScore":9.3,"baseSeverity":"CRITICAL","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"NONE","scope":"CHANGED","confidentialityImpact":"LOW","integrityImpact":"HIGH","availabilityImpact":"NONE"},"exploitabilityScore":3.9,"impactScore":4.7}],"ssvcV203":[{"source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","ssvcData":{"timestamp":"2024-12-19T17:08:23.183860Z","id":"CVE-2024-52591","options":[{"exploitation":"none"},{"automatable":"yes"},{"technicalImpact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}]},"weaknesses":[{"source":"security-advisories@github.com","type":"Secondary","description":[{"lang":"en","value":"CWE-20"}]}],"configurations":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:a:misskey:misskey:*:*:*:*:*:*:*:*","versionEndExcluding":"2024.11.0","matchCriteriaId":"87F71DD8-FFC9-4029-AE69-087D436A4A30"},{"vulnerable":true,"criteria":"cpe:2.3:a:misskey:misskey:2024.11.0:alpha0:*:*:*:*:*:*","matchCriteriaId":"1BF4BE35-2292-4FD3-BE70-1ECB93C759D5"},{"vulnerable":true,"criteria":"cpe:2.3:a:misskey:misskey:2024.11.0:alpha1:*:*:*:*:*:*","matchCriteriaId":"E74599B9-F76E-40E2-A2BC-297FBCD4114A"},{"vulnerable":true,"criteria":"cpe:2.3:a:misskey:misskey:2024.11.0:alpha2:*:*:*:*:*:*","matchCriteriaId":"43BB14C6-8368-49E6-A1EF-6218C7ED998C"}]}]}],"references":[{"url":"https://github.com/misskey-dev/misskey/security/advisories/GHSA-m2gq-69fp-6hv4","source":"security-advisories@github.com","tags":["Third Party Advisory"]}]}}]}