{"id":"CVE-2025-66020","sourceIdentifier":"security-advisories@github.com","published":"2025-11-26T02:15:49.540","lastModified":"2026-10-23T22:10:00.160","vulnStatus":"Deferred","cveTags":[],"descriptions":[{"lang":"en","value":"Valibot helps validate data using a schema. In versions from 0.31.0 to 1.1.0, the EMOJI_REGEX used in the emoji action is vulnerable to a Regular Expression Denial of Service (ReDoS) attack. A short, maliciously crafted string (e.g., <100 characters) can cause the regex engine to consume excessive CPU time (minutes), leading to a Denial of Service (DoS) for the application. This issue has been patched in version 1.2.0."},{"lang":"es","value":"Valibot ayuda a validar datos usando un esquema. En las versiones de 0.31.0 a 1.1.0, la EMOJI_REGEX utilizada en la acción de emoji es vulnerable a un ataque de Denegación de Servicio por Expresiones Regulares (ReDoS). Una cadena corta y maliciosamente elaborada (por ejemplo, anterior a 100 caracteres) puede hacer que el motor de expresiones regulares consuma un tiempo excesivo de CPU (minutos), lo que lleva a una Denegación de Servicio (DoS) para la aplicación. Este problema ha sido parcheado en la versión 1.2.0."}],"affected":[{"source":"security-advisories@github.com","affectedData":[{"vendor":"open-circle","product":"valibot","versions":[{"version":">= 0.31.0, < 1.2.0","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: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}],"ssvcV203":[{"source":"134c704f-9b21-4f2e-91b3-4a467353bcc0","ssvcData":{"timestamp":"2025-11-26T14:15:40.424558Z","id":"CVE-2025-66020","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-1333"}]}],"references":[{"url":"https://github.com/open-circle/valibot/commit/cfb799db301a953a0950d5c05a34a3ab121262dc","source":"security-advisories@github.com"},{"url":"https://github.com/open-circle/valibot/security/advisories/GHSA-vqpr-j7v3-hqw9","source":"security-advisories@github.com"}]}