CVE-2026-0992
Full vulnerability record from the local CVENow database.
Description
A flaw was found in the libxml2 library. This uncontrolled resource consumption vulnerability occurs when processing XML catalogs that contain repeated <nextCatalog> elements pointing to the same downstream catalog. A remote attacker can exploit this by supplying crafted catalogs, causing the parser to redundantly traverse catalog chains. This leads to excessive CPU consumption and degrades application availability, resulting in a denial-of-service condition.
Severity
LOW
CVSS score
2.9
(v3.1)
Vulnerability status
Analyzed
Source identifier
Published
2026-01-15 15:15:52.657000
Last modified
2026-11-06 18:17:31.800000
View original CVE JSON
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"id": "CVE-2026-0992",
"sourceIdentifier": "[email protected]",
"published": "2026-01-15T15:15:52.657",
"lastModified": "2026-11-06T18:17:31.800",
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"value": "A flaw was found in the libxml2 library. This uncontrolled resource consumption vulnerability occurs when processing XML catalogs that contain repeated <nextCatalog> elements pointing to the same downstream catalog. A remote attacker can exploit this by supplying crafted catalogs, causing the parser to redundantly traverse catalog chains. This leads to excessive CPU consumption and degrades application availability, resulting in a denial-of-service condition."
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"value": "Se encontró una falla en la biblioteca libxml2. Esta vulnerabilidad de consumo de recursos no controlado ocurre al procesar catálogos XML que contienen elementos repetidos que apuntan al mismo catálogo descendente. Un atacante remoto puede explotar esto al proporcionar catálogos manipulados, lo que hace que el analizador recorra redundantemente las cadenas de catálogos. Esto conduce a un consumo excesivo de CPU y degrada la disponibilidad de la aplicación, lo que resulta en una condición de denegación de servicio."
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