CVE-2026-44697

Klever-Go is the Go implementation of the Klever blockchain protocol. Prior to 1.7.17, a remote, unauthenticated denial-of-service vulnerability in Batch.Decompress (data/batch/batch.go) allows any peer that participates in a topic served by MultiDataInterceptor to allocate multi-gigabyte heaps on the receiving node from a sub-50 KiB gossip payload. A single packet is sufficient to OOM-kill a validator with conventional memory provisioning. Fleet-wide application affects chain liveness. This vulnerability is fixed in 1.7.17.

CVSS v3 8.6 HIGH

8.6^/10

CVSS v3 : HIGH

Vector :

Exploitability : 3.9 / Impact : 4.0

Attack Vector NETWORK

Attack Complexity LOW

Privileges Required NONE

User Interaction NONE

Confidentiality Impact NONE

Integrity Impact NONE

Availability Impact HIGH

Scope CHANGED

References

Link	Resource
https://github.com/klever-io/klever-go/security/advisories/GHSA-87m7-qffr-542v
https://github.com/klever-io/klever-go/security/advisories/GHSA-87m7-qffr-542v

Configurations

No configuration.

History

21 Jul 2026, 15:10

Type	Values Removed	Values Added
Summary		(es) Klever-Go es la implementación en Go del protocolo blockchain de Klever. Anterior a la 1.7.17, una vulnerabilidad de denegación de servicio remota y no autenticada en Batch.Decompress (data/batch/batch.go) permite a cualquier par que participa en un tema servido por MultiDataInterceptor asignar montones de varios gigabytes en el nodo receptor a partir de una carga útil de gossip de menos de 50 KiB. Un solo paquete es suficiente para provocar un OOM-kill en un validador con aprovisionamiento de memoria convencional. La aplicación a nivel de flota afecta la vivacidad de la cadena. Esta vulnerabilidad se corrige en la 1.7.17.

02 Jun 2026, 03:16

Type	Values Removed	Values Added
References	~~() https://github.com/klever-io/klever-go/security/advisories/GHSA-87m7-qffr-542v -~~	() https://github.com/klever-io/klever-go/security/advisories/GHSA-87m7-qffr-542v -

29 May 2026, 18:17

Type	Values Removed	Values Added
New CVE

Information

Published : 2026-05-29 18:17

Updated : 2026-07-21 20:17

NVD link : CVE-2026-44697

Mitre link : CVE-2026-44697

CVE.ORG link : CVE-2026-44697

JSON object : View

Products Affected

No product.

CWE

CWE-409

Improper Handling of Highly Compressed Data (Data Amplification)

CWE-770

Allocation of Resources Without Limits or Throttling

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