MAL-2026-5852

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Import Source
https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/richtext-editor-ui/MAL-2026-5852.json
JSON Data
https://api.osv.dev/v1/vulns/MAL-2026-5852
Aliases
  • GHSA-fgqx-cjm6-75x2
Published
2026-06-15T23:51:49Z
Modified
2026-06-17T06:02:05.116140750Z
Summary
Malicious code in richtext-editor-ui (npm)
Details

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

Source: amazon-inspector (fe87b6998b0d91eb7eefb71e37d8145b5db79b79dd21bc1ffda10d56d64b6d16)

On npm install, postinstall.js base64-decodes a hardcoded URL (https://www.jsonkeeper.com/b/7EBZP), fetches its body via axios, and pipes the response into a detached, unref'd node child process through stdin — running arbitrary attacker-supplied JavaScript on the installer's machine without consent. The URL constant is misleadingly named DEV_API_KEY to disguise its purpose, and jsonkeeper.com is an anonymous mutable paste host where the served payload can be changed at any time. The package metadata also does not match its name: description, keywords (lambda, publish, compose, modular), and an index.js error message referencing 'theta' indicate the package is a lure published under a richtext-editor-shaped name to attract installs unrelated to its real behavior.

Source: ghsa-malware (cee2cf9a14eccb5f263c23441ee102710afc9d1d24e73bdda0156e3ab002bb6b)

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": [
        {
            "sha256": "cee2cf9a14eccb5f263c23441ee102710afc9d1d24e73bdda0156e3ab002bb6b",
            "source": "ghsa-malware",
            "modified_time": "2026-06-15T23:51:49Z",
            "id": "GHSA-fgqx-cjm6-75x2",
            "ranges": [
                {
                    "type": "SEMVER",
                    "events": [
                        {
                            "introduced": "0"
                        }
                    ]
                }
            ],
            "import_time": "2026-06-16T01:31:34.716906345Z"
        },
        {
            "sha256": "fe87b6998b0d91eb7eefb71e37d8145b5db79b79dd21bc1ffda10d56d64b6d16",
            "source": "amazon-inspector",
            "modified_time": "2026-06-17T04:20:15Z",
            "id": "IN-MAL-2026-006878",
            "versions": [
                "1.0.0"
            ],
            "import_time": "2026-06-17T05:45:41.888310397Z"
        }
    ]
}
References
Credits

Affected packages

npm / richtext-editor-ui

Package

Name
richtext-editor-ui
View open source insights on deps.dev
Purl
pkg:npm/richtext-editor-ui

Affected ranges

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

Affected versions

1.*
1.0.0

Database specific

cwes 
[
    {
        "name": "Embedded Malicious Code",
        "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"
    }
]
source 
"https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/richtext-editor-ui/MAL-2026-5852.json"
indicators 
{
    "evidence_files": [
        {
            "sha256": "e40f5bda87054ad5b8c30efa4dce8ee8f78c014fd72afae62cbb7c1e40574e0b",
            "tlsh": "34e0ab2f316b27bc2f700dc8883291364c07e030f582e1e0a48e4017ad8b75b144beec",
            "path": "postinstall.js"
        },
        {
            "sha256": "0d4dcf47d7d90d5c8549d56eaa7cd914fccdb6f2765adb437f27f8c6567c7da6",
            "tlsh": "fe21dd20e4e2ac6317d551b53c2d42532191d917898bfc0cb7ab034c8f1c23f92f916d",
            "path": "package.json"
        }
    ]
}