CVE-2026-50126

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{"affected": [{"affectedData": [{"product": "adaguc-server", "vendor": "KNMI", "versions": [{"status": "affected", "version": "< 7.2.2"}]}], "source": "security-advisories@github.com"}], "cveTags": [], "descriptions": [{"lang": "en", "value": "Adaguc-server is an open source geographical information system to visualize, combine, compare and share real-time meteorological, climatological and remote sensing data via OGC standards. Versions prior to 7.2.2 crash with a memory-safety fault when it parses a GeoJSON document whose geometry contains a malformed coordinate. The coordinate parser in `adagucserverEC/CConvertGeoJSON.cpp` indexes `pt.u.array.values[0]` and `pt.u.array.values[1]` and uses `polygon.u.array.length` as a loop bound without first validating the JSON node type or the coordinate length. A coordinate that is an empty array, a one-element array, a scalar, or `null` leads to an out-of-bounds heap read or a NULL pointer dereference. The same unchecked pattern is present in four geometry branches: `Polygon`, `LineString`, `MultiLineString` and `MultiPolygon`. The vulnerable parser runs whenever the server processes a local GeoJSON file, either a configured GeoJSON dataset or a GeoJSON file exposed through the `AutoResource` feature and requested by an unauthenticated WMS request. A crafted GeoJSON file reliably crashes the backend process that handles that request. Version 7.2.2 patches the vulnerability."}, {"lang": "es", "value": "Adaguc-server es un sistema de informaci\u00f3n geogr\u00e1fica de c\u00f3digo abierto para visualizar, combinar, comparar y compartir datos meteorol\u00f3gicos, climatol\u00f3gicos y de teledetecci\u00f3n en tiempo real a trav\u00e9s de est\u00e1ndares OGC. Las versiones anteriores a la 7.2.2 fallan con un fallo de seguridad de memoria cuando analiza un documento GeoJSON cuya geometr\u00eda contiene una coordenada malformada. El analizador de coordenadas en \u201cadagucserverEC/CConvertGeoJSON.cpp\u201d indexa \u201cpt.u.array.values[0]\u201d y \u201cpt.u.array.values[1]\u201d y usa \u201cpolygon.u.array.length\u201d como l\u00edmite de bucle sin validar primero el tipo de nodo JSON o la longitud de la coordenada. Una coordenada que es un array vac\u00edo, un array de un elemento, un escalar o \u201cnull\u201d conduce a una lectura de heap fuera de l\u00edmites o a una desreferencia de puntero NULL. El mismo patr\u00f3n sin verificar est\u00e1 presente en cuatro ramas de geometr\u00eda: \u201cPolygon\u201d, \u201cLineString\u201d, \u201cMultiLineString\u201d y \u201cMultiPolygon\u201d. El analizador vulnerable se ejecuta cada vez que el servidor procesa un archivo GeoJSON local, ya sea un conjunto de datos GeoJSON configurado o un archivo GeoJSON expuesto a trav\u00e9s de la caracter\u00edstica \u201cAutoResource\u201d y solicitado por una petici\u00f3n WMS no autenticada. Un archivo GeoJSON manipulado bloquea de forma fiable el proceso de backend que maneja esa petici\u00f3n. La versi\u00f3n 7.2.2 parchea la vulnerabilidad."}], "id": "CVE-2026-50126", "lastModified": "2026-10-22T22:10:00.250", "metrics": {"cvssMetricV31": [{"cvssData": {"attackComplexity": "LOW", "attackVector": "LOCAL", "availabilityImpact": "LOW", "baseScore": 4.0, "baseSeverity": "MEDIUM", "confidentialityImpact": "NONE", "integrityImpact": "NONE", "privilegesRequired": "NONE", "scope": "UNCHANGED", "userInteraction": "NONE", "vectorString": "CVSS:3.1/AV:L/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:L", "version": "3.1"}, "exploitabilityScore": 2.5, "impactScore": 1.4, "source": "security-advisories@github.com", "type": "Secondary"}], "ssvcV203": [{"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "ssvcData": {"id": "CVE-2026-50126", "options": [{"exploitation": "poc"}, {"automatable": "no"}, {"technicalImpact": "partial"}], "role": "CISA Coordinator", "timestamp": "2026-08-18T17:41:23.498848Z", "version": "2.0.3"}}]}, "published": "2026-08-18T17:16:58.410", "references": [{"source": "security-advisories@github.com", "url": "https://github.com/KNMI/adaguc-server/commit/30dffde1a1776b994d60026f41ca620f7cad72e9"}, {"source": "security-advisories@github.com", "url": "https://github.com/KNMI/adaguc-server/pull/710"}, {"source": "security-advisories@github.com", "url": "https://github.com/KNMI/adaguc-server/releases/tag/7.2.2"}, {"source": "security-advisories@github.com", "url": "https://github.com/KNMI/adaguc-server/security/advisories/GHSA-mwgv-59vv-rp2m"}, {"source": "134c704f-9b21-4f2e-91b3-4a467353bcc0", "url": "https://github.com/KNMI/adaguc-server/security/advisories/GHSA-mwgv-59vv-rp2m"}], "sourceIdentifier": "security-advisories@github.com", "vulnStatus": "Deferred", "weaknesses": [{"description": [{"lang": "en", "value": "CWE-125"}, {"lang": "en", "value": "CWE-476"}], "source": "security-advisories@github.com", "type": "Secondary"}]}

{}

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