MAL-2026-6336
Vulnerability from ossf_malicious_packages
-= Per source details. Do not edit below this line.=-
Source: amazon-inspector (dc297a0deaba794fdbfccc280a79c7cc895f21fc4e0122b1fba1bc4759b66c3f)
The package ships an obfuscated JavaScript file at shim/index.js using hex-style identifier mangling (_0x391f3f, _0x3eff0a, _0x534564, etc.) characteristic of javascript-obfuscator output. Obfuscation alone is not proof of malicious intent — some publishers obfuscate for anti-tampering or anti-piracy reasons — but it prevents reliable assessment of the file's runtime behavior, and contextual tracing of the obfuscated code path was not available. No concrete evidence of credential exfiltration, install-time fetch-and-execute, silent-relay of caller data, or hardcoded attacker C2 was observed, but the inability to verify what the obfuscated shim does at load/use time leaves the residual risk unresolved. Recommend human review of the de-obfuscated content before trusting this package in a build pipeline.
Source: ghsa-malware (9eba02cd977686ab88190a2b6adbf6cac674273f223ff2b2da59d6fe94fe3da6)
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.
- CWE-506 - The product contains code that appears to be malicious in nature.
- CWE-506 - The product contains code that appears to be malicious in nature.
- CWE-506 - The product contains code that appears to be malicious in nature.
- 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"
},
{
"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": "shim/index.js",
"sha256": "a04ea528a630adb229706c91b08d52ac600f18d7fdca5e22b8b1cbf5c8fe2a79",
"tlsh": "013390456ac0749123475fbb362bb0d5e42b18d93588844fc19cfea0a8b2767e6f3d39"
}
]
}
},
"package": {
"ecosystem": "npm",
"name": "sync-external"
},
"ranges": [
{
"events": [
{
"introduced": "0"
}
],
"type": "SEMVER"
}
],
"versions": [
"1.6.2",
"1.6.0",
"1.6.1"
]
}
],
"aliases": [
"GHSA-vrc4-g2p2-9895"
],
"credits": [
{
"contact": [
"inspector-research@amazon.com"
],
"name": "Amazon Inspector",
"type": "FINDER"
}
],
"database_specific": {
"malicious-packages-origins": [
{
"id": "GHSA-vrc4-g2p2-9895",
"import_time": "2026-06-23T17:03:25.71343293Z",
"modified_time": "2026-06-23T15:38:44Z",
"ranges": [
{
"events": [
{
"introduced": "0"
}
],
"type": "SEMVER"
}
],
"sha256": "9eba02cd977686ab88190a2b6adbf6cac674273f223ff2b2da59d6fe94fe3da6",
"source": "ghsa-malware"
},
{
"id": "IN-MAL-2026-007369",
"import_time": "2026-06-23T21:37:20.933271045Z",
"modified_time": "2026-06-23T21:30:59Z",
"sha256": "8d8956b9f24ef06b1eb1b055b0e2cf3bc6702008feb964f74bd2939902c0fc6b",
"source": "amazon-inspector",
"versions": [
"1.6.2"
]
},
{
"id": "IN-MAL-2026-007368",
"import_time": "2026-06-23T21:37:20.87956849Z",
"modified_time": "2026-06-23T21:30:58Z",
"sha256": "91baacbbae3abfb5a5c5c788d08ea925e9bcdf5cfa38f4865994b28f1668e38f",
"source": "amazon-inspector",
"versions": [
"1.6.0"
]
},
{
"id": "IN-MAL-2026-007370",
"import_time": "2026-06-23T21:37:21.014066156Z",
"modified_time": "2026-06-23T21:31:03Z",
"sha256": "dc297a0deaba794fdbfccc280a79c7cc895f21fc4e0122b1fba1bc4759b66c3f",
"source": "amazon-inspector",
"versions": [
"1.6.1"
]
}
]
},
"details": "\n---\n_-= Per source details. Do not edit below this line.=-_\n\n## Source: amazon-inspector (dc297a0deaba794fdbfccc280a79c7cc895f21fc4e0122b1fba1bc4759b66c3f)\nThe package ships an obfuscated JavaScript file at shim/index.js using hex-style identifier mangling (_0x391f3f, _0x3eff0a, _0x534564, etc.) characteristic of javascript-obfuscator output. Obfuscation alone is not proof of malicious intent \u2014 some publishers obfuscate for anti-tampering or anti-piracy reasons \u2014 but it prevents reliable assessment of the file\u0027s runtime behavior, and contextual tracing of the obfuscated code path was not available. No concrete evidence of credential exfiltration, install-time fetch-and-execute, silent-relay of caller data, or hardcoded attacker C2 was observed, but the inability to verify what the obfuscated shim does at load/use time leaves the residual risk unresolved. Recommend human review of the de-obfuscated content before trusting this package in a build pipeline.\n\n## Source: ghsa-malware (9eba02cd977686ab88190a2b6adbf6cac674273f223ff2b2da59d6fe94fe3da6)\nAny 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.\n",
"id": "MAL-2026-6336",
"modified": "2026-06-23T21:39:06Z",
"published": "2026-06-23T15:38:44Z",
"references": [
{
"type": "ADVISORY",
"url": "https://github.com/advisories/GHSA-vrc4-g2p2-9895"
},
{
"type": "PACKAGE",
"url": "https://www.npmjs.com/package/sync-external/v/1.6.2"
},
{
"type": "PACKAGE",
"url": "https://www.npmjs.com/package/sync-external/v/1.6.0"
},
{
"type": "PACKAGE",
"url": "https://www.npmjs.com/package/sync-external/v/1.6.1"
}
],
"schema_version": "1.7.4",
"summary": "Malicious code in sync-external (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.