MAL-2026-14422

See a problem?
Import Source
https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/@medisend/core/MAL-2026-14422.json
JSON Data
https://api.osv.dev/v1/vulns/MAL-2026-14422
Aliases
  • GHSA-wfxf-4cwg-r55p
Published
2026-08-24T16:46:21Z
Modified
2026-09-08T00:30:16Z
Summary
Malicious code in @medisend/core (npm)
Details

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

Source: amazon-inspector (18f32429d1bfdc9438f2f03f531e5c2fef53e0e69104e3124499cf6f42ce52a1)

package.json declares a postinstall lifecycle script that runs curl against https://webhook.site/ with the installer's hostname appended as a query parameter, transmitting the host identifier to a third-party request-inspection collector on every npm install. The package name @medisend/core with version 0.0.1-security-research and a description referencing a dependency-confusion test targets internal builds that expect a private @medisend/core package; when such a build resolves this public package instead, the postinstall runs automatically and leaks the installer's hostname off-host. The self-labelled 'security research' framing does not change the effect: any installer that resolves this package executes an unconsented host-identifier beacon to a destination controlled by whoever provisioned the webhook.site URL.

Source: ghsa-malware (4a8c872aa8b3ed68e9054cddab1f0652b633fb297b6580ba2eee5ec9376ed409)

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": "IN-MAL-2026-018652",
            "import_time": "2026-08-24T16:49:15.09301005Z",
            "modified_time": "2026-08-24T16:46:21Z",
            "sha256": "18f32429d1bfdc9438f2f03f531e5c2fef53e0e69104e3124499cf6f42ce52a1",
            "source": "amazon-inspector",
            "versions": [
                "0.0.1-security-research"
            ]
        },
        {
            "id": "GHSA-wfxf-4cwg-r55p",
            "import_time": "2026-09-08T00:15:11.430012451Z",
            "modified_time": "2026-09-07T16:02:53Z",
            "ranges": [
                {
                    "events": [
                        {
                            "introduced": "0"
                        }
                    ],
                    "type": "SEMVER"
                }
            ],
            "sha256": "4a8c872aa8b3ed68e9054cddab1f0652b633fb297b6580ba2eee5ec9376ed409",
            "source": "ghsa-malware"
        }
    ]
}
References
Credits

Affected packages

npm / @medisend/core

Package

Name
@medisend/core
View open source insights on deps.dev
Purl
pkg:npm/%40medisend/core

Affected ranges

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

Affected versions

0.*
0.0.1-security-research

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": "package.json",
            "sha256": "a185b39ae0922db4364de88d75b9a1a1322cc478d5adc48f220916f180321b92",
            "tlsh": "b2e072b53018203326e902aa0830900db932ca0a204a1f1fcac603a8a20c6f68712aca"
        }
    ],
    "package_integrity": [
        {
            "filename": "core-0.0.1-security-research.tgz",
            "hashes": {
                "sha1": "2f037d364f913355759d717e0cf38d68fc068f0b",
                "sha512_sri": "sha512-AZQsoHKGzDV7qg/+l7GSlN0ecz90A5aulcPjRDaYISIqn/vVPkBv6HYWodSAvMvhSb5FjekN5xNPquDmq6Waxg=="
            }
        }
    ]
}
source 
"https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/@medisend/core/MAL-2026-14422.json"