CVE-2026-16756

Missing connection and header-read timeouts and the absence of a concurrent-connection cap in the default serve() path of Amazon aws-smithy-http-server might allow remote attackers to cause a denial of service by opening many connections and sending partial requests that are never completed, exhausting server sockets and tasks. To mitigate this issue, users should upgrade to aws-smithy-http-server 0.66.5 or later.

CVSS v3 7.5 HIGH

7.5^/10

CVSS v3 : HIGH

Vector :

Exploitability : 3.9 / Impact : 3.6

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope UNCHANGED

References

Link	Resource
https://aws.amazon.com/security/security-bulletins/2026-064-aws/
https://crates.io/crates/aws-smithy-http-server/0.66.5
https://github.com/smithy-lang/smithy-rs/security/advisories/GHSA-jvxp-qmx7-gjpx

Configurations

No configuration.

History

24 Oct 2026, 13:10

Type	Values Removed	Values Added
Summary		(es) La falta de tiempos de espera para la conexión y la lectura de encabezados y la ausencia de un límite de conexiones concurrentes en la ruta ’serve()’ predeterminada de Amazon aws-smithy-http-server podría permitir a atacantes remotos causar una denegación de servicio al abrir muchas conexiones y enviar solicitudes parciales que nunca se completan, agotando los sockets del servidor y las tareas. Para mitigar este problema, los usuarios deberían actualizar a aws-smithy-http-server 0.66.5 o posterior.

Information

Published : 2026-07-23 19:16

Updated : 2026-10-24 13:10

NVD link : CVE-2026-16756

Mitre link : CVE-2026-16756

CVE.ORG link : CVE-2026-16756

JSON object : View

Products Affected

No product.

CWE

CWE-770

Allocation of Resources Without Limits or Throttling

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