{"id":"CVE-2026-44458","sourceIdentifier":"security-advisories@github.com","published":"2026-05-13T16:16:57.837","lastModified":"2026-10-26T14:10:00.130","vulnStatus":"Analyzed","cveTags":[],"descriptions":[{"lang":"en","value":"Hono is a Web application framework that provides support for any JavaScript runtime. Prior to 4.12.18, the JSX renderer escapes style attribute object values for HTML but not for CSS. Untrusted input in a style object value or property name can therefore inject additional CSS declarations into the rendered style attribute. The impact is limited to CSS and does not allow JavaScript execution or HTML attribute breakout. This vulnerability is fixed in 4.12.18."},{"lang":"es","value":"Hono es un framework de aplicación web que proporciona soporte para cualquier entorno de ejecución de JavaScript. Antes de la versión 4.12.18, el renderizador JSX escapa los valores de objeto del atributo style para HTML, pero no para CSS. Por lo tanto, una entrada no confiable en un valor de objeto de estilo o nombre de propiedad puede inyectar declaraciones CSS adicionales en el atributo style renderizado. El impacto se limita a CSS y no permite la ejecución de JavaScript ni la ruptura de atributos HTML. Esta vulnerabilidad se corrige en la versión 4.12.18."}],"affected":[{"source":"security-advisories@github.com","affectedData":[{"vendor":"honojs","product":"hono","versions":[{"version":"< 4.12.18","status":"affected"}]}]}],"metrics":{"cvssMetricV31":[{"source":"security-advisories@github.com","type":"Secondary","cvssData":{"version":"3.1","vectorString":"CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N","baseScore":4.3,"baseSeverity":"MEDIUM","attackVector":"NETWORK","attackComplexity":"LOW","privilegesRequired":"NONE","userInteraction":"REQUIRED","scope":"UNCHANGED","confidentialityImpact":"NONE","integrityImpact":"LOW","availabilityImpact":"NONE"},"exploitabilityScore":2.8,"impactScore":1.4}],"ssvcV203":[{"source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","ssvcData":{"timestamp":"2026-05-14T16:00:00.933430Z","id":"CVE-2026-44458","options":[{"exploitation":"none"},{"automatable":"no"},{"technicalImpact":"partial"}],"role":"CISA Coordinator","version":"2.0.3"}}]},"weaknesses":[{"source":"security-advisories@github.com","type":"Secondary","description":[{"lang":"en","value":"CWE-74"},{"lang":"en","value":"CWE-116"}]}],"configurations":[{"nodes":[{"operator":"OR","negate":false,"cpeMatch":[{"vulnerable":true,"criteria":"cpe:2.3:a:hono:hono:*:*:*:*:*:node.js:*:*","versionEndExcluding":"4.12.18","matchCriteriaId":"5AB1A6FC-8475-4A23-9E63-46F3E6C5D264"}]}]}],"references":[{"url":"https://github.com/honojs/hono/security/advisories/GHSA-qp7p-654g-cw7p","source":"security-advisories@github.com","tags":["Vendor Advisory"]}]}