CVE-2026-48486

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Source
https://cve.org/CVERecord?id=CVE-2026-48486
Import Source
https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-48486.json
JSON Data
https://api.osv.dev/v1/vulns/CVE-2026-48486
Aliases
  • GHSA-4vjp-2m22-r2q9
Published
2026-09-03T15:22:35Z
Modified
2026-09-11T09:02:40Z
Severity
  • 7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:C/C:N/I:H/A:L CVSS Calculator
Summary
Signum Node: Integer overflow in SMART_FEES fee distribution allows arbitrary miner reward inflation
Details

Signum Node is a HDD-mined cryptocurrency using an energy efficient and fair Proof-of-Commitment (PoC+) consensus algorithm. Prior to version 3.9.9, an integer overflow in BlockServiceImpl.applyBlock() allowed a miner to receive an arbitrarily inflated block reward by crafting a block with a negative totalFeeCashBackNqt value. The vulnerability was introduced when the SMART_FEES hardfork (block ~1,029,000) enabled fee cash-back and burn accounting without overflow protection. This issue has been patched in version 3.9.9.

Database specific 
{
    "cna_assigner":  "GitHub_M",
    "cwe_ids":  [
        "CWE-190"
    ],
    "osv_generated_from":  "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/48xxx/CVE-2026-48486.json"
}
References

Affected packages

Git / github.com/signum-network/signum-node

Affected ranges

Type
GIT
Repo
https://github.com/signum-network/signum-node
Events
Introduced
0 Unknown introduced commit / All previous commits are affected
Fixed
d2597c579e22b122b03a6c24291ce85a14aa2460
Database specific
Show details 
{
    "extracted_events":  [
        {
            "introduced":  "0"
        },
        {
            "fixed":  "3.9.9"
        }
    ],
    "source":  [
        "AFFECTED_FIELD",
        "REFERENCES"
    ]
}

Affected versions

1.*
1.2.4
1.2.5
1.2.6
1.2.7
1.2.8
v2.*
v2.3.0
v2.4.0
v2.4.1
v2.4.2
v2.5.0
v2.5.0-alpha1
v2.5.0-alpha2
v2.5.0-alpha3
v2.5.1
v2.5.2
v2.5.3
v2.5.4
v3.*
v3.0.0
v3.0.0-alpha8
v3.0.1
v3.1.0
v3.1.1
v3.2.0-alpha1
v3.2.0-alpha2
v3.2.0-alpha3
v3.2.0-beta1
v3.2.0-beta2
v3.2.0-beta3
v3.3.0
v3.3.0-alpha13
v3.4.0-alpha1
v3.4.0-alpha2
v3.4.0-beta1
v3.4.0-beta10
v3.4.0-beta2
v3.4.0-beta3
v3.4.0-beta4
v3.4.0-beta5
v3.4.0-beta8
v3.4.0-beta9
v3.4.3-beta1
v3.4.3-beta2
v3.4.3-beta3
v3.5.1-beta6
v3.5.2-beta1
v3.5.2-beta2
v3.5.2-beta3
v3.6.1-beta1
v3.6.1-beta2
v3.6.1-beta3
v3.6.1-beta4
v3.6.1-beta5
v3.7.0-beta1
v3.7.0-beta10
v3.7.0-beta11
v3.7.0-beta12
v3.7.0-beta2
v3.7.0-beta3
v3.7.0-beta4
v3.7.0-beta5
v3.7.0-beta6
v3.7.0-beta7
v3.7.0-beta8
v3.7.0-beta9
v3.7.2-beta1
v3.8.0
v3.8.0-dev
v3.8.1
v3.8.2
v3.8.4
v3.9.0-rc
v3.9.0-rc1
v3.9.2
v3.9.3
v3.9.4
v3.9.7
v3.9.8

Database specific

source 
"https://storage.googleapis.com/cve-osv-conversion/osv-output/CVE-2026-48486.json"
vanir_signatures 
[
    {
        "deprecated":  false,
        "digest":  {
            "line_hashes":  [
                "71344313484646680913669198488519996053",
                "299094564097870482772236802660430531409",
                "336241233098094065944634198307005435622",
                "255825274679377710856883545420679233164"
            ],
            "threshold":  0.9
        },
        "id":  "CVE-2026-48486-9c4ee4b2",
        "signature_type":  "Line",
        "signature_version":  "v1",
        "source":  "https://github.com/signum-network/signum-node/commit/d2597c579e22b122b03a6c24291ce85a14aa2460",
        "target":  {
            "file":  "src/brs/Signum.java"
        }
    }
]
vanir_signatures_modified 
"2026-09-11T09:02:40Z"