MAL-2026-5259
Vulnerability from ossf_malicious_packages
Published
2026-06-05 00:53
Modified
2026-06-05 05:12
Summary
Malicious code in github-archiver (npm)
Details
-= Per source details. Do not edit below this line.=-
Source: google-open-source-security (a6c7977dbc054cdb7fe56da0d2fbd26e2a6fed695deb4263ccbf4adfedd86acb)
The Miasma malware is a self-propagating worm that spreads across the npm registry by abusing weaponized binding.gyp files to achieve execution during package installation, bypassing security tools that only inspect package lifecycle scripts. Upon execution, the malware attempts to exfiltrate credentials and OIDC tokens for various cloud and registry services, and propagates by compromising other packages managed by the stolen accounts or committing backdoor files to GitHub repositories.
{
"affected": [
{
"package": {
"ecosystem": "npm",
"name": "github-archiver"
},
"versions": [
"1.5.4",
"1.5.5"
]
}
],
"database_specific": {
"malicious-packages-origins": [
{
"import_time": "2026-06-05T05:50:37.549948Z",
"modified_time": "2026-06-05T05:12:55.157000667Z",
"sha256": "a6c7977dbc054cdb7fe56da0d2fbd26e2a6fed695deb4263ccbf4adfedd86acb",
"source": "google-open-source-security",
"versions": [
"1.5.4",
"1.5.5"
]
}
]
},
"details": "\n---\n_-= Per source details. Do not edit below this line.=-_\n\n## Source: google-open-source-security (a6c7977dbc054cdb7fe56da0d2fbd26e2a6fed695deb4263ccbf4adfedd86acb)\nThe Miasma malware is a self-propagating worm that spreads across the npm registry by abusing weaponized `binding.gyp` files to achieve execution during package installation, bypassing security tools that only inspect package lifecycle scripts. Upon execution, the malware attempts to exfiltrate credentials and OIDC tokens for various cloud and registry services, and propagates by compromising other packages managed by the stolen accounts or committing backdoor files to GitHub repositories.\n",
"id": "MAL-2026-5259",
"modified": "2026-06-05T05:12:55Z",
"published": "2026-06-05T00:53:43Z",
"references": [
{
"type": "ARTICLE",
"url": "https://www.endorlabs.com/learn/malicious-payload-in-ai-sdk-ollama-npm-package"
},
{
"type": "ARTICLE",
"url": "https://www.stepsecurity.io/blog/binding-gyp-npm-supply-chain-attack-spreads-like-worm"
}
],
"schema_version": "1.7.4",
"summary": "Malicious code in github-archiver (npm)"
}
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Experimental. This forecast is provided for visualization only and may change without notice. Do not use it for operational decisions.
Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
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.
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