Detections
Analytics

SCA: security update for github.com/klever-io/klever-go (GHSA-hf2g-6j7h-98wg)

high Tenable Self-Hosted Container Security Plugin ID 442843

Description

There are packages installed that are affected by a vulnerability referenced in the following CVE:

 - Klever-Go is the Go implementation of the Klever blockchain protocol. In versions 1.7.14 through 1.7.17,
 the direct-message ingress handler spawns a new goroutine for every incoming direct message before the
 processor-level antiflood layer makes any admission decision, with no semaphore, throttler, or bound on
 the number of concurrent in-flight spawns. Because the antiflood check runs inside the spawned goroutine
 rather than before it, a single connected peer can open a direct-send stream and send a stream of well-
 formed messages to force unbounded goroutine creation, where each goroutine allocates its own stack and
 holds a message reference until processing completes, adding scheduler and garbage-collection pressure
 faster than the runtime can drain it. This lets one peer degrade the node's availability and its ability
 to process legitimate traffic, resulting in a remotely triggerable denial of service. The issue is fixed
 in 1.7.18. (CVE-2026-52879)

Solution

Update the github.com/klever-io/klever-go library and its related packages to version 1.7.18 or later.

See Also

https://github.com/advisories/GHSA-hf2g-6j7h-98wg

Plugin Details

Severity: High

ID: 442843

Version: Revision 1.4

Type: Local

Family: SCA Checks

Published: 6/9/2026

Updated: 8/10/2026

Supported Sensors: Tenable Cloud Security, Tenable Self-Hosted Container Security

Risk Information

VPR

Risk Factor: Low

Score: 3

Percentile: 23.76

Vendor

Vendor Severity: High

CVSS v2

Risk Factor: High

Base Score: 7.8

Temporal Score: 5.8

Vector: CVSS2#AV:N/AC:L/Au:N/C:N/I:N/A:C

CVSS Score Source: CVE-2026-52879

CVSS v3

Risk Factor: High

Base Score: 7.5

Temporal Score: 6.5

Vector: CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H

Temporal Vector: CVSS:3.0/E:U/RL:O/RC:C

Vulnerability Information

Exploit Ease: No known exploits are available

Patch Publication Date: 6/5/2026

Vulnerability Publication Date: 6/5/2026

Reference Information

CVE: CVE-2026-52879