CVE-2026-54755

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Source
https://cve.org/CVERecord?id=CVE-2026-54755
Import Source
https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-54755.json
JSON Data
https://api.test.osv.dev/v1/vulns/CVE-2026-54755
Aliases
Downstream
Related
Published
2026-08-28T16:23:44Z
Modified
2026-09-11T03:30:37Z
Severity
  • 9.6 (Critical) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:N/I:H/A:H CVSS Calculator
Summary
Klever-Go: Integer overflow in split-royalty validation enables unbounded minting of KLV (native token)
Details

Klever-Go is the Go implementation of the Klever blockchain protocol. Prior to 1.7.19, split-royalty fields decoded in core/kapp/builtInFunctions/utils.go can contain values greater than core.HundredPercent, and core/kapp/kda/create.go and core/kapp/kda/trigger.go sum those values in uint32 accumulators. Crafted values such as two 0x80000000 entries wrap the validation sum to zero and pass CheckValid100Params. Royalty payout paths in core/kapp/accounts/accounts.go, core/kapp/market/market.go, and core/kapp/ito/ito.go then credit each oversized split amount and silently discard a negative remainder, allowing ordinary asset transfers, marketplace purchases, or ITO purchases to create unbacked KLV or other assets. This issue is fixed in version 1.7.19.

Database specific 
{
    "cna_assigner":  "GitHub_M",
    "cwe_ids":  [
        "CWE-190"
    ],
    "osv_generated_from":  "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/54xxx/CVE-2026-54755.json"
}
References

Affected packages

Git / github.com/klever-io/klever-go

Affected ranges

Type
GIT
Repo
https://github.com/klever-io/klever-go
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
8bcc600b0ac88070740c63c7ce1c8a968dd85251
Database specific
Show details 
{
    "extracted_events":  [
        {
            "introduced":  "0"
        },
        {
            "fixed":  "1.7.19"
        }
    ],
    "source":  [
        "AFFECTED_FIELD",
        "REFERENCES"
    ]
}

Affected versions

v1.*
v1.7.14
v1.7.15
v1.7.16
v1.7.17
v1.7.18

Database specific

source 
"https://storage.googleapis.com/osv-test-cve-osv-conversion/osv-output/CVE-2026-54755.json"