MAL-2026-13760

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Import Source
https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/bs58-13/MAL-2026-13760.json
JSON Data
https://api.osv.dev/v1/vulns/MAL-2026-13760
Aliases
  • GHSA-72pr-qcvq-fgpg
Published
2026-08-11T16:40:08Z
Modified
2026-08-12T12:30:12Z
Summary
Malicious code in bs58-13 (npm)
Details

-= Per source details. Do not edit below this line.=-

Source: amazon-inspector (981f5e55b471c2c102357ab650c3fdb6b27d4ab30001be83c532c819c1be350f)

Package name, README, and keywords mirror the popular base58 encoding library bs58, but the main module contains only require("base65-13x") and re-exports its result. The declared runtime dependency base65-13x is a name-lookalike of the genuine base-x library that bs58 normally depends on. The wrapper itself declares no lifecycle scripts and performs no network I/O, filesystem access, or shell execution; installing this package resolves and loads base65-13x in place of base-x.

Source: ghsa-malware (09092abdcc8b57c65e4b4df9bfe2eafa907e86d0f0fe1388ba5b4060f78eef6a)

Any computer that has this package installed or running should be considered fully compromised. All secrets and keys stored on that computer should be rotated immediately from a different computer. The package should be removed, but as full control of the computer may have been given to an outside entity, there is no guarantee that removing the package will remove all malicious software resulting from installing it.

Database specific 
{
    "malicious-packages-origins": [
        {
            "id": "GHSA-72pr-qcvq-fgpg",
            "import_time": "2026-08-12T00:17:04.860348957Z",
            "modified_time": "2026-08-11T16:40:08Z",
            "ranges": [
                {
                    "events": [
                        {
                            "introduced": "0"
                        }
                    ],
                    "type": "SEMVER"
                }
            ],
            "sha256": "09092abdcc8b57c65e4b4df9bfe2eafa907e86d0f0fe1388ba5b4060f78eef6a",
            "source": "ghsa-malware"
        },
        {
            "id": "IN-MAL-2026-017430",
            "import_time": "2026-08-12T12:24:12.905881875Z",
            "modified_time": "2026-08-12T12:20:24Z",
            "sha256": "981f5e55b471c2c102357ab650c3fdb6b27d4ab30001be83c532c819c1be350f",
            "source": "amazon-inspector",
            "versions": [
                "6.0.1"
            ]
        }
    ]
}
References
Credits

Affected packages

npm / bs58-13

Package

Name
bs58-13
View open source insights on deps.dev
Purl
pkg:npm/bs58-13

Affected ranges

Type
SEMVER
Events
Introduced
0 Unknown introduced version / All previous versions are affected

Affected versions

6.*
6.0.1

Database specific

cwes 
[
    {
        "cweId": "CWE-506",
        "description": "The product contains code that appears to be malicious in nature.",
        "name": "Embedded Malicious Code"
    },
    {
        "cweId": "CWE-506",
        "description": "The product contains code that appears to be malicious in nature.",
        "name": "Embedded Malicious Code"
    }
]
indicators 
{
    "evidence_files": [
        {
            "path": "src/cjs/index.cjs",
            "sha256": "b954fec59782392f309f8adc29376e167ee2cbffd5743e03eb5bba3a5435e6e5",
            "tlsh": "bde0615a7db7d4914264004e4225c8932efd4c7f0484345e72cf9fbad25409568a1d17"
        }
    ]
}
source 
"https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/bs58-13/MAL-2026-13760.json"