mal-2026-16356
Vulnerability from ossf_malicious_packages
-= Per source details. Do not edit below this line.=-
Source: amazon-inspector (eebffb3f581b979c3e9a1dc0aef347111b50922326b2181cc9d2bc009c4e7021)
The package advertises itself as ASGI healthcheck/logging middleware, but its documented entry point configure_logging() (re-exported from src/starlette_healthcheck/setup.py via init.py) spawns a background thread that POSTs host reconnaissance to a hardcoded Azure Container Apps subdomain ca-fusion-dev-collector.victorioussmoke-2f009910.uksouth.azurecontainerapps.io, which the caller does not configure. The beacon iterates the entire os.environ and sends each variable name as a log line, resolves the machine's public IP via checkip.amazonaws.com, and sends the hostname. Requests are authenticated with a hardcoded X-Api-Key value ("fusion-default-api-key") shipped in the source. The env-var name inventory alone discloses which CI providers, cloud credentials, and secret-manager integrations exist on the host, which is targeting reconnaissance rather than request logging. Placing the exfiltration code in a module named setup.py inside the package blends the beacon into build-tooling naming and does not match the package's advertised purpose.
Source: kam193 (13c2438df5dfe3675f8861c03c803a273747135af8a70fc916235ad64d6cd22f)
The package appears to be a typosquatting research attempt. It provides an extremely basic functionality for the user and the main purpose seems to be the telemetry call. Additionally, similar package starlette-healthcheck was recently removed.
Category: MALICIOUS - The campaign has clearly malicious intent, like infostealers.
Campaign: 2026-09-starlette-healthcheck
Reasons (based on the campaign):
-
action-hidden-in-lib-usage
-
typosquatting
{
"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"
}
],
"indicators": {
"evidence_files": [
{
"path": "src/starlette_healthcheck/setup.py",
"sha256": "de3c2ee8cb970cd05602488f17acf71401c3ba351febb53021aca6547214efbe",
"tlsh": "2f81749bcd3b8d5207b2951d1c67d259f733430f250265a23abc635c2f3983ae0f9698"
}
],
"package_integrity": [
{
"filename": "starlette_healthchecks-1.3.2-py3-none-any.whl",
"hashes": {
"blake2b_256": "2c03c06f48a79d1cf0800d9aae4f74c6d037694066f1244ab256078b5c4853b9",
"md5": "ae0d1f854535ad89930bfb6ccc85de88",
"sha256": "2588d3e1db8f1a8444b30cc44851c3a3ba2b16d657624da3eb5620bac0c935cf"
}
},
{
"filename": "starlette_healthchecks-1.3.2.tar.gz",
"hashes": {
"blake2b_256": "6146bc3b174acc658af677fcfd29be362807678646039cc6dec54984cf38933a",
"md5": "6cee35ac7d7350b269bfcbf2bcbb9916",
"sha256": "2f45f5be0b47d7c0dfe16c57a533072aab334b34677c6ed1b7715347a71ca717"
}
}
]
}
},
"package": {
"ecosystem": "PyPI",
"name": "starlette-healthchecks"
},
"versions": [
"1.3.1",
"1.3.2"
]
}
],
"credits": [
{
"contact": [
"inspector-research@amazon.com"
],
"name": "Amazon Inspector",
"type": "FINDER"
},
{
"contact": [
"https://github.com/kam193",
"https://bad-packages.kam193.eu/"
],
"name": "Kamil Ma\u0144kowski (kam193)",
"type": "REPORTER"
}
],
"database_specific": {
"iocs": {
"domains": [
"ca-fusion-dev-collector.victorioussmoke-2f009910.uksouth.azurecontainerapps.io"
]
},
"malicious-packages-origins": [
{
"id": "pypi/2026-09-starlette-healthcheck/starlette-healthchecks",
"import_time": "2026-09-21T17:38:33.982933083Z",
"modified_time": "2026-09-21T16:50:02.361508Z",
"sha256": "13c2438df5dfe3675f8861c03c803a273747135af8a70fc916235ad64d6cd22f",
"source": "kam193",
"versions": [
"1.3.1"
]
},
{
"id": "pypi/2026-09-starlette-healthcheck/starlette-healthchecks",
"import_time": "2026-09-21T21:37:47.148069691Z",
"modified_time": "2026-09-21T21:05:51.789499Z",
"sha256": "090da89e9cdd96102197fa3c5f16840adf89d67c49b6c22c8c8b0e8b6dd4296b",
"source": "kam193",
"versions": [
"1.3.1",
"1.3.2"
]
},
{
"id": "IN-MAL-2026-020331",
"import_time": "2026-09-23T02:26:00.312699674Z",
"modified_time": "2026-09-23T01:51:23Z",
"sha256": "a188debacc12b8da66c5bee77726baaaa37477ae614186d5d73b05b667e7b92e",
"source": "amazon-inspector",
"versions": [
"1.3.2"
]
},
{
"id": "IN-MAL-2026-020330",
"import_time": "2026-09-23T02:26:00.27268269Z",
"modified_time": "2026-09-23T01:51:15Z",
"sha256": "eebffb3f581b979c3e9a1dc0aef347111b50922326b2181cc9d2bc009c4e7021",
"source": "amazon-inspector",
"versions": [
"1.3.1"
]
}
]
},
"details": "\n---\n_-= Per source details. Do not edit below this line.=-_\n\n## Source: amazon-inspector (eebffb3f581b979c3e9a1dc0aef347111b50922326b2181cc9d2bc009c4e7021)\nThe package advertises itself as ASGI healthcheck/logging middleware, but its documented entry point configure_logging() (re-exported from src/starlette_healthcheck/setup.py via __init__.py) spawns a background thread that POSTs host reconnaissance to a hardcoded Azure Container Apps subdomain ca-fusion-dev-collector.victorioussmoke-2f009910.uksouth.azurecontainerapps.io, which the caller does not configure. The beacon iterates the entire os.environ and sends each variable name as a log line, resolves the machine\u0027s public IP via checkip.amazonaws.com, and sends the hostname. Requests are authenticated with a hardcoded X-Api-Key value (\"fusion-default-api-key\") shipped in the source. The env-var name inventory alone discloses which CI providers, cloud credentials, and secret-manager integrations exist on the host, which is targeting reconnaissance rather than request logging. Placing the exfiltration code in a module named setup.py inside the package blends the beacon into build-tooling naming and does not match the package\u0027s advertised purpose.\n\n## Source: kam193 (13c2438df5dfe3675f8861c03c803a273747135af8a70fc916235ad64d6cd22f)\nThe package appears to be a typosquatting research attempt. It provides an extremely basic functionality for the user and the main purpose seems to be the telemetry call. Additionally, similar package starlette-healthcheck was recently removed.\n\n\n---\n\nCategory: MALICIOUS - The campaign has clearly malicious intent, like infostealers.\n\n\nCampaign: 2026-09-starlette-healthcheck\n\n\nReasons (based on the campaign):\n\n\n - action-hidden-in-lib-usage\n\n\n - typosquatting\n",
"id": "MAL-2026-16356",
"modified": "2026-09-23T02:27:56.640361798Z",
"published": "2026-09-21T16:50:02Z",
"references": [
{
"type": "WEB",
"url": "https://bad-packages.kam193.eu/pypi/package/starlette-healthchecks"
},
{
"type": "PACKAGE",
"url": "https://pypi.org/project/starlette-healthchecks/1.3.2/"
},
{
"type": "PACKAGE",
"url": "https://pypi.org/project/starlette-healthchecks/1.3.1/"
}
],
"schema_version": "1.7.4",
"summary": "Malicious code in starlette-healthchecks (PyPI)"
}
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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