{"resultsPerPage":1,"startIndex":0,"totalResults":1,"format":"NVD_CVE","version":"2.0","timestamp":"2026-05-10T15:28:43.962","vulnerabilities":[{"cve":{"id":"CVE-2022-21688","sourceIdentifier":"security-advisories@github.com","published":"2022-01-18T22:15:07.933","lastModified":"2024-11-21T06:45:14.143","vulnStatus":"Modified","cveTags":[],"descriptions":[{"lang":"en","value":"OnionShare is an open source tool that lets you securely and anonymously share files, host websites, and chat with friends using the Tor network. Affected versions of the desktop application were found to be vulnerable to denial of service via an undisclosed vulnerability in the QT image parsing. Roughly 20 bytes lead to 2GB memory consumption and this can be triggered multiple times. To be abused, this vulnerability requires rendering in the history tab, so some user interaction is required. An adversary with knowledge of the Onion service address in public mode or with authentication in private mode can perform a Denial of Service attack, which quickly results in out-of-memory for the server. This requires the desktop application with rendered history, therefore the impact is only elevated. This issue has been patched in version 2.5."},{"lang":"es","value":"OnionShare es una herramienta de código abierto que permite compartir archivos, alojar sitios web y chatear con amigos de forma segura y anónima usando la red Tor. Se ha detectado que las versiones afectadas de la aplicación de escritorio son vulnerables a una denegación de servicio por medio de una vulnerabilidad no revelada en el análisis de imágenes QT. Aproximadamente 20 bytes conllevan a un consumo de memoria de 2GB y esto puede desencadenarse múltiples veces. Para ser abusada, esta vulnerabilidad requiere la renderización en la pestaña del historial, por lo que es requerido alguna interacción del usuario. Un adversario con conocimiento de la dirección del servicio de Onion en modo público o con autenticación en modo privado puede llevar a cabo un ataque de denegación de servicio, que rápidamente resulta en el agotamiento de la memoria del servidor. Esto requiere la aplicación de escritorio con el historial renderizado, por lo que el impacto es sólo elevado. Este problema ha sido parcheado en la versión 2.5"}],"metrics":{"cvssMetricV31":[{"source":"security-advisories@github.com","type":"Secondary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H","baseScore":7.5,"baseSeverity":"HIGH","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"NONE","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"HIGH"},"exploitabilityScore":3.9,"impactScore":3.6},{"source":"nvd@nist.gov","type":"Primary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:H","baseScore":5.5,"baseSeverity":"MEDIUM","attackVector":"LOCAL","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"REQUIRED","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"HIGH"},"exploitabilityScore":1.8,"impactScore":3.6}],"cvssMetricV2":[{"source":"nvd@nist.gov","type":"Primary","cvssData":{"version":"2.0","vectorString":"AV:N/AC:M/Au:N/C:N/I:N/A:P","baseScore":4.3,"accessVector":"NETWORK","accessComplexity":"MEDIUM","authentication":"NONE","confidentialityImpact":"NONE","integrityImpact":"NONE","availabilityImpact":"PARTIAL"},"baseSeverity":"MEDIUM","exploitabilityScore":8.6,"impactScore":2.9,"acInsufInfo":false,"obtainAllPrivilege":false,"obtainUserPrivilege":false,"obtainOtherPrivilege":false,"userInteractionRequired":true}]},"weaknesses":[{"source":"security-advisories@github.com","type":"Secondary","description":[{"lang":"en","value":"CWE-125"}]},{"source":"nvd@nist.gov","type":"Primary","description":[{"lang":"en","value":"CWE-125"}]}],"configurations":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:a:onionshare:onionshare:*:*:*:*:*:*:*:*","versionEndExcluding":"2.5","matchCriteriaId":"B3A7A46B-5812-492A-B66B-DC43A15A0A38"}]}]}],"references":[{"url":"https://github.com/onionshare/onionshare/releases/tag/v2.5","source":"security-advisories@github.com","tags":["Release Notes","Third Party Advisory"]},{"url":"https://github.com/onionshare/onionshare/security/advisories/GHSA-x7wr-283h-5h2v","source":"security-advisories@github.com","tags":["Third Party Advisory"]},{"url":"https://github.com/onionshare/onionshare/releases/tag/v2.5","source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Release Notes","Third Party Advisory"]},{"url":"https://github.com/onionshare/onionshare/security/advisories/GHSA-x7wr-283h-5h2v","source":"af854a3a-2127-422b-91ae-364da2661108","tags":["Third Party Advisory"]}]}}]}