MAL-2026-6387

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Import Source
https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/multer-express/MAL-2026-6387.json
JSON Data
https://api.osv.dev/v1/vulns/MAL-2026-6387
Aliases
  • GHSA-vvr6-9g6q-v5w3
Published
2026-06-24T10:23:40Z
Modified
2026-07-08T23:46:56.710923715Z
Summary
Malicious code in multer-express (npm)
Details

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

Source: amazon-inspector (50b4df9cf15644bbea3ed944cbf168fdbad1619d0c3e10fff653b0d48c10bbb3)

Package name 'multer-express' is similar to the widely used 'multer' middleware for Express. No malicious code patterns, install-time hooks, or exfiltration behaviors were identified in the package contents. Name-similarity alone is a subjective signal and may indicate an unrelated derivative, fork, or beginner package rather than an attack. Routing to human review for name-confusion assessment.

Source: ghsa-malware (b2776e1ead8f0a089fc302abdc832c78c30a0add00952fb3071c904a3fcbc150)

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": [
        {
            "ranges": [
                {
                    "events": [
                        {
                            "introduced": "0"
                        }
                    ],
                    "type": "SEMVER"
                }
            ],
            "id": "GHSA-vvr6-9g6q-v5w3",
            "source": "ghsa-malware",
            "import_time": "2026-06-24T11:17:15.527477381Z",
            "modified_time": "2026-06-24T10:23:45Z",
            "sha256": "b2776e1ead8f0a089fc302abdc832c78c30a0add00952fb3071c904a3fcbc150"
        },
        {
            "sha256": "50b4df9cf15644bbea3ed944cbf168fdbad1619d0c3e10fff653b0d48c10bbb3",
            "id": "IN-MAL-2026-009010",
            "source": "amazon-inspector",
            "import_time": "2026-07-08T23:27:59.08679416Z",
            "modified_time": "2026-07-08T23:05:36Z",
            "versions": [
                "2.1.1"
            ]
        }
    ]
}
References
Credits

Affected packages

npm / multer-express

Package

Name
multer-express
View open source insights on deps.dev
Purl
pkg:npm/multer-express

Affected ranges

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

Affected versions

2.*
2.1.1

Database specific

source 
"https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/multer-express/MAL-2026-6387.json"
cwes 
[
    {
        "description": "The product contains code that appears to be malicious in nature.",
        "cweId": "CWE-506",
        "name": "Embedded Malicious Code"
    },
    {
        "description": "The product contains code that appears to be malicious in nature.",
        "cweId": "CWE-506",
        "name": "Embedded Malicious Code"
    }
]