CVE-2026-54156
CVE-2026-54156 · node-opcua: Unbounded nonce cache enables unauthenticated heap exhaustion DoS
Esta página presenta datos de fuentes públicas de vulnerabilidades. Consulta el aviso original antes de actualizar.
node-opcua is an OPC UA implementation for TypeScript and Node.js. Prior to 2.166.0, the process-global g_alreadyUsedNonce cache used by nonceAlreadyBeenUsed in packages/node-opcua-secure-channel/source/server/server_secure_channel_layer.ts records nonces from OpenSecureChannelRequest and CreateSession without expiration or a size limit. An unauthenticated remote attacker can repeatedly create sessions with unique nonces, causing entries to persist after session expiry and accumulate across connection cycles even when maxSessions=10 limits concurrent sessions. The resulting unbounded heap growth can exhaust the default Node.js heap and crash the node-opcua server process. This issue is fixed in version 2.166.0.
CVSS 7.5 · Alta · EPSS 0,8% · Corrección disponible
- Publicación
- Actualización
Pila tecnológica: node
Productos y versiones afectados
node-opcua
- Versiones
- < 2.166.0: Afectada
Sin corrección publicada
node-opcua npm
- Intervalos de versiones afectados
- SEMVER: < 2.166.0
Actualiza a 2.166.0