CVE-2026-27212

{"id": "CVE-2026-27212", "cveTags": [], "metrics": {"ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-27212", "role": "CISA Coordinator", "options": [{"exploitation": "poc"}, {"automatable": "no"}, {"technicalImpact": "total"}], "version": "2.0.3", "timestamp": "2026-02-24T18:52:46.035771Z"}}], "cvssMetricV31": [{"type": "Primary", "source": "nvd@nist.gov", "cvssData": {"scope": "UNCHANGED", "version": "3.1", "baseScore": 7.8, "attackVector": "LOCAL", "baseSeverity": "HIGH", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H", "integrityImpact": "HIGH", "userInteraction": "NONE", "attackComplexity": "LOW", "availabilityImpact": "HIGH", "privilegesRequired": "LOW", "confidentialityImpact": "HIGH"}, "impactScore": 5.9, "exploitabilityScore": 1.8}], "cvssMetricV40": [{"type": "Secondary", "source": "security-advisories@github.com", "cvssData": {"Safety": "NOT_DEFINED", "version": "4.0", "Recovery": "NOT_DEFINED", "baseScore": 9.4, "Automatable": "NOT_DEFINED", "attackVector": "LOCAL", "baseSeverity": "CRITICAL", "valueDensity": "NOT_DEFINED", "vectorString": "CVSS:4.0/AV:L/AC:L/AT:N/PR:N/UI:N/VC:H/VI:H/VA:H/SC:H/SI:H/SA:H/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", "exploitMaturity": "NOT_DEFINED", "providerUrgency": "NOT_DEFINED", "userInteraction": "NONE", "attackComplexity": "LOW", "attackRequirements": "NONE", "privilegesRequired": "NONE", "subIntegrityImpact": "HIGH", "vulnIntegrityImpact": "HIGH", "integrityRequirement": "NOT_DEFINED", "modifiedAttackVector": "NOT_DEFINED", "subAvailabilityImpact": "HIGH", "vulnAvailabilityImpact": "HIGH", "availabilityRequirement": "NOT_DEFINED", "modifiedUserInteraction": "NOT_DEFINED", "modifiedAttackComplexity": "NOT_DEFINED", "subConfidentialityImpact": "HIGH", "vulnConfidentialityImpact": "HIGH", "confidentialityRequirement": "NOT_DEFINED", "modifiedAttackRequirements": "NOT_DEFINED", "modifiedPrivilegesRequired": "NOT_DEFINED", "modifiedSubIntegrityImpact": "NOT_DEFINED", "modifiedVulnIntegrityImpact": "NOT_DEFINED", "vulnerabilityResponseEffort": "NOT_DEFINED", "modifiedSubAvailabilityImpact": "NOT_DEFINED", "modifiedVulnAvailabilityImpact": "NOT_DEFINED", "modifiedSubConfidentialityImpact": "NOT_DEFINED", "modifiedVulnConfidentialityImpact": "NOT_DEFINED"}}]}, "affected": [{"source": "security-advisories@github.com", "affectedData": [{"vendor": "nolimits4web", "product": "swiper", "versions": [{"status": "affected", "version": ">= 6.5.1, < 12.1.2"}]}]}], "published": "2026-02-21T06:17:01.443", "references": [{"url": "https://github.com/nolimits4web/swiper/commit/d3e663322a13043ca63aaba235d8cf3900e0c8cf", "tags": ["Patch"], "source": "security-advisories@github.com"}, {"url": "https://github.com/nolimits4web/swiper/releases/tag/v12.1.2", "tags": ["Product"], "source": "security-advisories@github.com"}, {"url": "https://github.com/nolimits4web/swiper/security/advisories/GHSA-hmx5-qpq5-p643", "tags": ["Exploit", "Vendor Advisory"], "source": "security-advisories@github.com"}], "vulnStatus": "Analyzed", "weaknesses": [{"type": "Secondary", "source": "security-advisories@github.com", "description": [{"lang": "en", "value": "CWE-1321"}]}], "descriptions": [{"lang": "en", "value": "Swiper is a free and mobile touch slider with hardware accelerated transitions and native behavior. Versions 6.5.1 through 12.1.1 have a Prototype pollution vulnerability. The vulnerability resides in line 94 of shared/utils.mjs, where the indexOf() function is used to check whether user provided input contain forbidden strings. Despite a previous fix that attempted to mitigate prototype pollution by checking whether user input contained a forbidden key, it is still possible to pollute Object.prototype via a crafted input using Array.prototype. The exploit works across Windows and Linux and on Node and Bun runtimes. Any application that processes attacker-controlled input using this package may be affected by the following: Authentication Bypass, Denial of Service and RCE. This issue is fixed in version 12.1.2."}, {"lang": "es", "value": "Swiper es un deslizador t\u00e1ctil m\u00f3vil y gratuito con transiciones aceleradas por hardware y comportamiento nativo. Las versiones 6.5.1 hasta 12.1.1 tienen una vulnerabilidad de contaminaci\u00f3n de prototipos. La vulnerabilidad reside en la l\u00ednea 94 de shared/utils.mjs, donde la funci\u00f3n indexOf() se utiliza para verificar si la entrada proporcionada por el usuario contiene cadenas prohibidas. A pesar de una correcci\u00f3n anterior que intent\u00f3 mitigar la contaminaci\u00f3n de prototipos verificando si la entrada del usuario conten\u00eda una clave prohibida, todav\u00eda es posible contaminar Object.prototype a trav\u00e9s de una entrada manipulada usando Array.prototype. El exploit funciona en Windows y Linux y en los entornos de ejecuci\u00f3n de Node y Bun. Cualquier aplicaci\u00f3n que procese entrada controlada por el atacante usando este paquete puede verse afectada por lo siguiente: Omisi\u00f3n de Autenticaci\u00f3n, Denegaci\u00f3n de Servicio y RCE. Este problema est\u00e1 solucionado en la versi\u00f3n 12.1.2."}], "lastModified": "2026-06-17T10:26:51.280", "configurations": [{"nodes": [{"negate": false, "cpeMatch": [{"criteria": "cpe:2.3:a:swiperjs:swiper:*:*:*:*:*:node.js:*:*", "vulnerable": true, "matchCriteriaId": "649D66EB-A502-4668-92D9-0534432DBFF0", "versionEndExcluding": "12.1.2", "versionStartIncluding": "6.5.1"}], "operator": "OR"}]}], "sourceIdentifier": "security-advisories@github.com"}