mal-2026-16239
Vulnerability from ossf_malicious_packages
-= Per source details. Do not edit below this line.=-
Source: amazon-inspector (188e8ecd93a0124135c178af848914dbd0f8cc7c3f9fdc7f5137fc94e46bb27d)
strapi-plugin-pysh-meeb@3.6.8 ships a postinstall.js (also declared as the package main) that runs automatically on npm install. The script uses child_process to spawn a Python one-liner (python3 -c 'import sys,socket,os,pty;...pty.spawn("sh")') which opens an outbound TCP connection to the hardcoded attacker IP 14.225.210.85:80 and hands an interactive PTY shell to the remote endpoint, giving full remote code execution on the installer's host. Detonation is gated by an os.hostname() equality check against 'ubuntu-fc-uvm', a targeting/evasion mechanism that suppresses the payload on other hosts while firing on the intended victim; retry logic is present to re-establish the connection. Package metadata is consistent with a typosquat dropper: the name mimics a Strapi plugin, the repository URL uses a placeholder 'user' org and a mismatched slug (strapi-plugin-yayccresh-meeb), and the description is a generic 'Strapi plugin for enhanced functionality'. No legitimate plugin functionality is shipped.
- CWE-506 - The product contains code that appears to be malicious in nature.
{
"affected": [
{
"database_specific": {
"cwes": [
{
"cweId": "CWE-506",
"description": "The product contains code that appears to be malicious in nature.",
"name": "Embedded Malicious Code"
}
],
"indicators": {
"evidence_files": [
{
"path": "postinstall.js",
"sha256": "4d4d4c8b33a87d03be45370616b16c71a8b91a8cb12899fac511a5db72cc6993",
"tlsh": "ba4131ad06bf273a63334ca8521b8097e51701023512d578799c8b53bfd5d99c531bf9"
},
{
"path": "package.json",
"sha256": "bf67708429fb6fa94bf748fe1db6b050147a423dfcffbfb5634839921bd75bca",
"tlsh": "eaf0495aca2495532de93a94a81a1182a7264e478c81fc1c23b3011c8f0e2e7747f5dd"
}
],
"package_integrity": [
{
"filename": "strapi-plugin-pysh-meeb-3.6.8.tgz",
"hashes": {
"sha1": "03822e9badbf357dd5a985dad804ec5ef764ee7c",
"sha512_sri": "sha512-4OLJqw05AYHRBOWm816HuNv/4WAB0XzD3HrW0BuOnDnQ50wpfb3w+/C3IkpLJ386B3/B57gcK/0qChODYNcxzA=="
}
}
]
}
},
"package": {
"ecosystem": "npm",
"name": "strapi-plugin-pysh-meeb"
},
"versions": [
"3.6.8"
]
}
],
"credits": [
{
"contact": [
"inspector-research@amazon.com"
],
"name": "Amazon Inspector",
"type": "FINDER"
}
],
"database_specific": {
"malicious-packages-origins": [
{
"id": "IN-MAL-2026-020100",
"import_time": "2026-09-16T14:19:37.927782095Z",
"modified_time": "2026-09-16T13:58:38Z",
"sha256": "188e8ecd93a0124135c178af848914dbd0f8cc7c3f9fdc7f5137fc94e46bb27d",
"source": "amazon-inspector",
"versions": [
"3.6.8"
]
}
]
},
"details": "\n---\n_-= Per source details. Do not edit below this line.=-_\n\n## Source: amazon-inspector (188e8ecd93a0124135c178af848914dbd0f8cc7c3f9fdc7f5137fc94e46bb27d)\nstrapi-plugin-pysh-meeb@3.6.8 ships a postinstall.js (also declared as the package main) that runs automatically on npm install. The script uses child_process to spawn a Python one-liner (`python3 -c \u0027import sys,socket,os,pty;...pty.spawn(\"sh\")\u0027`) which opens an outbound TCP connection to the hardcoded attacker IP 14.225.210.85:80 and hands an interactive PTY shell to the remote endpoint, giving full remote code execution on the installer\u0027s host. Detonation is gated by an os.hostname() equality check against \u0027ubuntu-fc-uvm\u0027, a targeting/evasion mechanism that suppresses the payload on other hosts while firing on the intended victim; retry logic is present to re-establish the connection. Package metadata is consistent with a typosquat dropper: the name mimics a Strapi plugin, the repository URL uses a placeholder \u0027user\u0027 org and a mismatched slug (strapi-plugin-yayccresh-meeb), and the description is a generic \u0027Strapi plugin for enhanced functionality\u0027. No legitimate plugin functionality is shipped.\n",
"id": "MAL-2026-16239",
"modified": "2026-09-16T13:58:38Z",
"published": "2026-09-16T13:58:38Z",
"references": [
{
"type": "PACKAGE",
"url": "https://www.npmjs.com/package/strapi-plugin-pysh-meeb/v/3.6.8"
}
],
"schema_version": "1.7.4",
"summary": "Malicious code in strapi-plugin-pysh-meeb (npm)"
}
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
- Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
- Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
The approach is described in our paper Mapping CVEs to MITRE ATT&CK Techniques: A Curated Gold-Set Classifier and the Limits of LLM-Assisted Label Expansion.
Browse all ATT&CK techniques and the vulnerabilities related to each.
Related by attack behaviour
Vulnerabilities whose description is nearest to this one in the vector space of the CIRCL/vulnerability-attack-technique-biencoder model. This is a similarity search over the bi-encoder space (plain cosine), not a classification, and it has no measured accuracy.