Description
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.
Published: 2026-05-29
Score: 8.6 High
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

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Remediation

No vendor fix or workaround currently provided.

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Tracking

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Advisories
Source ID Title
Github GHSA Github GHSA GHSA-87m7-qffr-542v Klever-Go MultiDataInterceptor has remote OOM via crafted compressed P2P payload
History

Tue, 02 Jun 2026 02:30:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'poc', 'Technical Impact': 'partial'}, 'version': '2.0.3'}


Sat, 30 May 2026 23:00:00 +0000

Type Values Removed Values Added
First Time appeared Klever-io
Klever-io klever-go
Vendors & Products Klever-io
Klever-io klever-go

Fri, 29 May 2026 17:30:00 +0000

Type Values Removed Values Added
Description 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.
Title Klever-Go MultiDataInterceptor: remote OOM via crafted compressed P2P payload
Weaknesses CWE-409
CWE-770
References
Metrics cvssV3_1

{'score': 8.6, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:C/C:N/I:N/A:H'}


Subscriptions

Klever-io Klever-go
cve-icon MITRE

Status: PUBLISHED

Assigner: GitHub_M

Published:

Updated: 2026-06-02T01:47:29.036Z

Reserved: 2026-05-07T17:07:09.316Z

Link: CVE-2026-44697

cve-icon Vulnrichment

Updated: 2026-06-02T01:47:22.453Z

cve-icon NVD

Status : Deferred

Published: 2026-05-29T18:17:09.697

Modified: 2026-06-02T03:16:17.353

Link: CVE-2026-44697

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2026-05-30T21:18:19Z

Weaknesses