mal-2026-4707
Vulnerability from ossf_malicious_packages
-= Per source details. Do not edit below this line.=-
Source: amazon-inspector (c320320435358c109567ef3776ced079a2196b831b583b66c87323ddf402bae9)
Package name and README impersonate the official @vue/compiler-sfc package; index.js merely re-exports it. The npm postinstall hook runs postinstall-run.cjs which invokes tooling-bootstrap.cjs. tooling-bootstrap.cjs concatenates a fragmented base64 array (BOOTSTRAP_B64), decodes it, writes the resulting JS to ~/.gradle/daemon/tooling-api-runtime.mjs (a Gradle-daemon cover name), and detached-spawns it with the user's node binary (spawn(nodeBin, args, { detached: true, stdio: 'ignore', windowsHide: true }); child.unref()). Activation is gated by victim-project sentinels (ALLOWED_PROJECT_SENTINELS includes 'src/businessCom/BLinker.vue' and 'src/api/gameCategorie.js'), so the RAT only deploys inside the intended victim's repo — evading sandboxed install scanners. The decoded payload is a long-running C2 agent that POSTs hostname, OS user, and OS info to https://npmjs.it.com/api/register, persists an agent id at ~/.gradle-cache/.aid, polls https://npmjs.it.com/api/task/, and dispatches operator-issued ops: exec (spawn /bin/sh or cmd.exe with attacker-supplied command), ls, download (read arbitrary path and POST bytes to /api/file//), upload (write attacker-supplied base64 to arbitrary path), delete (fs.rmSync), move, ps. C2 defaults to https://npmjs.it.com/ (a typosquat of npmjs.com) and TLS verification can be disabled via C2_TLS_INSECURE. This is a fully-featured backdoor enabling credential theft (~/.aws, ~/.ssh,.env,.npmrc), arbitrary code execution, and persistent remote control of any machine where install hits the targeted project.
Source: ghsa-malware (743229aa3fd9708fcc81bfda9b4937eb5202d988c0eb704aa0f4c3393a4dc3c3)
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.
{
"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"
}
],
"indicators": {
"evidence_files": [
{
"path": "tooling-bootstrap.cjs",
"sha256": "611d046e90549a66bed104e3039df93ff33a7618e5c8bcc285d788c6095f7620",
"tlsh": "9e6281a6cc9b2d448350461ab5ce28c9284e87833d967dddb6ee82dc6f4e42f01f51ed"
}
],
"package_integrity": [
{
"filename": "vue-compiler-sfc-plugin-3.5.25.tgz",
"hashes": {
"sha1": "0f1e240ae86d31a345fdc4721855ff55717ad728",
"sha512_sri": "sha512-70fyCWXaP91GGi3Cs13ZuA9eoOSr3dfdWeddGwM8BiqWQqMXW6ldnyR4ZC8KD8en3sgWhEiCTh6TzrHWghi4AQ=="
}
}
]
}
},
"package": {
"ecosystem": "npm",
"name": "vue-compiler-sfc-plugin"
},
"ranges": [
{
"events": [
{
"introduced": "0"
}
],
"type": "SEMVER"
}
],
"versions": [
"3.5.25",
"3.5.26"
]
}
],
"aliases": [
"GHSA-v29w-qjvw-fm35"
],
"credits": [
{
"contact": [
"actran@amazon.com"
],
"name": "Amazon Inspector",
"type": "FINDER"
}
],
"database_specific": {
"malicious-packages-origins": [
{
"id": "IN-MAL-2026-004696",
"import_time": "2026-05-26T05:53:06.374150363Z",
"modified_time": "2026-05-25T15:12:28Z",
"sha256": "c320320435358c109567ef3776ced079a2196b831b583b66c87323ddf402bae9",
"source": "amazon-inspector",
"versions": [
"3.5.25"
]
},
{
"id": "IN-MAL-2026-004915",
"import_time": "2026-05-26T15:07:42.35599729Z",
"modified_time": "2026-05-26T14:14:28Z",
"sha256": "ccae84b1e69608b53868c4776df642dd816aa47b9110e8958aa03fcb6899f5e8",
"source": "amazon-inspector",
"versions": [
"3.5.26"
]
},
{
"id": "GHSA-v29w-qjvw-fm35",
"import_time": "2026-08-25T17:25:28.280668655Z",
"modified_time": "2026-08-25T16:54:22Z",
"ranges": [
{
"events": [
{
"introduced": "0"
}
],
"type": "SEMVER"
}
],
"sha256": "743229aa3fd9708fcc81bfda9b4937eb5202d988c0eb704aa0f4c3393a4dc3c3",
"source": "ghsa-malware"
}
]
},
"details": "\n---\n_-= Per source details. Do not edit below this line.=-_\n\n## Source: amazon-inspector (c320320435358c109567ef3776ced079a2196b831b583b66c87323ddf402bae9)\nPackage name and README impersonate the official @vue/compiler-sfc package; index.js merely re-exports it. The npm postinstall hook runs postinstall-run.cjs which invokes tooling-bootstrap.cjs. tooling-bootstrap.cjs concatenates a fragmented base64 array (BOOTSTRAP_B64), decodes it, writes the resulting JS to ~/.gradle/daemon/tooling-api-runtime.mjs (a Gradle-daemon cover name), and detached-spawns it with the user\u0027s node binary (spawn(nodeBin, args, { detached: true, stdio: \u0027ignore\u0027, windowsHide: true }); child.unref()). Activation is gated by victim-project sentinels (ALLOWED_PROJECT_SENTINELS includes \u0027src/businessCom/BLinker.vue\u0027 and \u0027src/api/gameCategorie.js\u0027), so the RAT only deploys inside the intended victim\u0027s repo \u2014 evading sandboxed install scanners. The decoded payload is a long-running C2 agent that POSTs hostname, OS user, and OS info to https://npmjs.it.com/api/register, persists an agent id at ~/.gradle-cache/.aid, polls https://npmjs.it.com/api/task/\u003cagent\u003e, and dispatches operator-issued ops: exec (spawn /bin/sh or cmd.exe with attacker-supplied command), ls, download (read arbitrary path and POST bytes to /api/file/\u003cagent\u003e/\u003ctask\u003e), upload (write attacker-supplied base64 to arbitrary path), delete (fs.rmSync), move, ps. C2 defaults to https://npmjs.it.com/ (a typosquat of npmjs.com) and TLS verification can be disabled via C2_TLS_INSECURE. This is a fully-featured backdoor enabling credential theft (~/.aws, ~/.ssh,.env,.npmrc), arbitrary code execution, and persistent remote control of any machine where install hits the targeted project.\n\n## Source: ghsa-malware (743229aa3fd9708fcc81bfda9b4937eb5202d988c0eb704aa0f4c3393a4dc3c3)\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-2026-4707",
"modified": "2026-08-25T17:27:32.571352758Z",
"published": "2026-05-25T15:12:28Z",
"references": [
{
"type": "PACKAGE",
"url": "https://www.npmjs.com/package/vue-compiler-sfc-plugin/v/3.5.25"
},
{
"type": "PACKAGE",
"url": "https://www.npmjs.com/package/vue-compiler-sfc-plugin/v/3.5.26"
},
{
"type": "ADVISORY",
"url": "https://github.com/advisories/GHSA-v29w-qjvw-fm35"
}
],
"schema_version": "1.7.4",
"summary": "Malicious code in vue-compiler-sfc-plugin (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.