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CVE-2026-108748

Estado: Pendiente de análisisMedia (6.9)—
Gravedad6.9Media · CVSS 4.0
Probabilidad de explotación0.30 %mayor que el 22 % de las CVE
Explotación activaNono figura en el catálogo de CISA
Exploit públicoNo conocidosin código público localizado

Quarkus LangChain4j 1.9.0 a 1.14.1 contiene una vulnerabilidad de liberación de memoria no realizada en el endpoint WebSocket /_chat/routes de chat-scopes que permite a clientes remotos no autenticados agotar la memoria del servidor. Los atacantes pueden enviar marcos CONNECT repetidos reutilizando un chatId, dejando ámbitos huérfanos en activeScopes hasta que la JVM se cierre y degradando la disponibilidad.

Traducción automática del texto original de NVD (en inglés).

CVSS

Puntuación base
6.9
Versión
4.0
Vector
CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/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

Probabilidad de explotación (EPSS)

Probabilidad de explotación en los próximos 30 días
0.30 %
Percentil entre todas las CVEs puntuadas
22
Fecha de la puntuación
20/10/2026

EPSS (Exploit Prediction Scoring System, de FIRST) estima la probabilidad de que una vulnerabilidad sea explotada en 30 días. Complementa a CVSS (impacto) y a CISA KEV (explotación confirmada).

Técnicas ATT&CK

Cómo se explota esta vulnerabilidad y qué consigue el atacante, en el lenguaje de MITRE ATT&CK.

Vector CVSS AV:N/PR:N/UI:N indica explotación remota sin autenticación (T1190). La vulnerabilidad de memory leak en WebSocket permite exhaurimiento de memoria del servidor (T1499.004 - resource exhaustion).

Inferido por nuestro agente de análisis a partir de la descripción oficial, el vector CVSS y la CWE, y comprobado por un supervisor. Puede contener errores.

Mitigaciones ATT&CK que cubren estas técnicas

Filter Network TrafficVulnerability ScanningPrivileged Account ManagementNetwork SegmentationLimit Access to Resource Over NetworkApplication Isolation and Sandboxing

Tecnologías afectadas (1)

⚠ Inferidas por IA a partir de la descripción — NVD aún no ha analizado esta CVE; no son CPE verificados.

Quarkus — Langchain4jAI

CWE

Referencias

Mostrar las 6 referencias

JSON original (NVD)

Mostrar
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          "vulnerabilityResponseEffort": "NOT_DEFINED",
          "modifiedSubAvailabilityImpact": "NOT_DEFINED",
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      "url": "https://github.com/quarkiverse/quarkus-langchain4j/blob/658ac8268e1a453a6a2066952d9495fb925479e3/chat-scopes/core/runtime/src/main/java/io/quarkiverse/langchain4j/chatscopes/internal/ChatScopeManagedContext.java#L297-L311",
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      "value": "Quarkus LangChain4j 1.9.0 through 1.14.1 contains a missing release of memory vulnerability in the chat-scopes WebSocket /_chat/routes endpoint that allows unauthenticated remote clients to exhaust server memory. Attackers can send repeated CONNECT frames reusing one chatId, leaving orphaned scopes in activeScopes until the JVM exits and degrading availability."
    }
  ],
  "lastModified": "2026-10-16T17:25:57.940",
  "sourceIdentifier": "disclosure@vulncheck.com"
}