MAL-2026-14424

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Import Source
https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/@medisend/webview-bridge/MAL-2026-14424.json
JSON Data
https://api.osv.dev/v1/vulns/MAL-2026-14424
Aliases
  • GHSA-j743-3xjm-x63m
Published
2026-08-24T14:01:03Z
Modified
2026-09-08T00:30:16Z
Summary
Malicious code in @medisend/webview-bridge (npm)
Details

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

Source: amazon-inspector (ddf4b396c306b8f8d090b929c265b8ae848c75e53b9750d6f68800a4deefe9a2)

package.json declares a postinstall lifecycle script that runs curl to https://webhook.site/74ed1be3-96d6-48c3-932b-6b1dbabaff97 with query parameters populated from $(whoami), $(hostname), $(pwd), $(ls -la), and $(node -v). On every npm install the installer's username, hostname, working directory, a directory listing of the install location, and Node.js version are sent to a third-party webhook.site collector controlled by whoever provisioned that endpoint. The package publishes under the @medisend scope and its description states a dependency-confusion test referencing a third-party VDP; an installer whose internal tooling resolves the public registry version instead of an internal @medisend package will trigger this exfiltration automatically.

Source: ghsa-malware (0480ab32758999df6fe5905502ce7b3cbf0ef1c2377cf006facaa2a47a68d26f)

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.

Source: ossf-package-analysis (bcefced9c742cce25a3c42fdb4cd5c9f2545184e7b661fff98f362ba0a566ce1)

The OpenSSF Package Analysis project identified '@medisend/webview-bridge' @ 0.0.2-security-research (npm) as malicious.

It is considered malicious because:

  • The package executes one or more commands associated with malicious behavior.
Database specific 
{
    "malicious-packages-origins": [
        {
            "id": "IN-MAL-2026-018655",
            "import_time": "2026-08-24T16:49:15.341946611Z",
            "modified_time": "2026-08-24T16:46:50Z",
            "sha256": "3a3d83177c7024c8d0ba6794e89b12a41ac0e1d7b00543b7105b96f09a7b8039",
            "source": "amazon-inspector",
            "versions": [
                "0.0.1-security-research"
            ]
        },
        {
            "id": "IN-MAL-2026-018651",
            "import_time": "2026-08-24T16:49:15.025338736Z",
            "modified_time": "2026-08-24T16:46:11Z",
            "sha256": "ddf4b396c306b8f8d090b929c265b8ae848c75e53b9750d6f68800a4deefe9a2",
            "source": "amazon-inspector",
            "versions": [
                "0.0.2-security-research"
            ]
        },
        {
            "import_time": "2026-08-25T02:31:33.274014458Z",
            "modified_time": "2026-08-24T14:01:03Z",
            "sha256": "bcefced9c742cce25a3c42fdb4cd5c9f2545184e7b661fff98f362ba0a566ce1",
            "source": "ossf-package-analysis",
            "versions": [
                "0.0.2-security-research"
            ]
        },
        {
            "id": "GHSA-j743-3xjm-x63m",
            "import_time": "2026-09-08T00:15:11.376915388Z",
            "modified_time": "2026-09-07T16:02:53Z",
            "ranges": [
                {
                    "events": [
                        {
                            "introduced": "0"
                        }
                    ],
                    "type": "SEMVER"
                }
            ],
            "sha256": "0480ab32758999df6fe5905502ce7b3cbf0ef1c2377cf006facaa2a47a68d26f",
            "source": "ghsa-malware"
        }
    ]
}
References
Credits

Affected packages

npm / @medisend/webview-bridge

Package

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

Affected ranges

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

Affected versions

0.*
0.0.1-security-research
0.0.2-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"
    },
    {
        "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": "c90e25369be90d0f07612c0ef7ff6fe8d31136dd138c0064ba942f8de4ef21e2",
            "tlsh": "41e068b528a411360ae846fa0930a00dba36c60d710b2b0bc2da42e8a30d7f81713698"
        }
    ],
    "package_integrity": [
        {
            "filename": "webview-bridge-0.0.1-security-research.tgz",
            "hashes": {
                "sha1": "fc3b448ebf599b77a528cef9a5d6bbd589cd5614",
                "sha512_sri": "sha512-EF5zp5a9ViGGjyMXElR6ChxxiMGUVodwgWvsP6WiumODwsFvyE2QFhOL0/cG2Wyo15q9ZqkP2WXPSV5Z9gSTCQ=="
            }
        }
    ]
}
source 
"https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/@medisend/webview-bridge/MAL-2026-14424.json"