mal-2026-5847
Vulnerability from ossf_malicious_packages
-= Per source details. Do not edit below this line.=-
Source: amazon-inspector (d137cd4e8e7fc6d323c33ed04a87a97b152b217f948d01fae3172900751bf121)
On import, the package's middleware spawns a detached node lib/caller.js child process. caller.js decodes a base64-obfuscated URL (https://api.jsonstorage.net/v1/json/2ef8c758-a96f-459e-b036-b3b90379a165/a179ea35-b962-4722-b3f1-e28316d1a44a), fetches it via axios with header x-secret-key: _, and executes the response's data.cookie string by passing it to new Function.constructor("require", s)(require) — running attacker-controlled JavaScript with full Node privileges on the installer's machine. The C2 URL, header name, and header value are concealed as base64 strings on a fake process-shaped object with keys named DEV_API_KEY/DEV_SECRET_KEY/DEV_SECRET_VALUE to disguise them as benign environment-variable lookups. The README, npm badges, and exports (module.exports.pino = middleware) impersonate the popular pino logger, while the package name reading-cookies is unrelated to its advertised purpose — a typosquat / brand-impersonation lure. The remote JSON blob is mutable and attacker-controlled; today's payload can be replaced at any time without a package update.
Source: ghsa-malware (f4a194e55ab8a2e54ad6d9ce957abd157196a174cba472fdb8c3d54235b5920c)
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"
}
],
"indicators": {
"evidence_files": [
{
"path": "lib/caller.js",
"sha256": "37e9dde0f35864e2ea8dcd4c8b5324ef50e3798195d04c30ba6938352af702db",
"tlsh": "1b01af9934fe541c015112e9171fa1326050e4673d86e6c83b4c87129fa667e6e93adf"
},
{
"path": "README.md",
"sha256": "554635e2ca7137794ba2f94624161b74fc77c87c2f7eff97a5c830810bf194d3",
"tlsh": "075175a782e87b6e4b6300b1a1c279a6ff2f931c7b69606ddc98d139131d5d7813114a"
}
]
}
},
"package": {
"ecosystem": "npm",
"name": "reading-cookies"
},
"ranges": [
{
"events": [
{
"introduced": "0"
}
],
"type": "SEMVER"
}
],
"versions": [
"6.13.2"
]
}
],
"aliases": [
"GHSA-mf62-v96j-mg7g"
],
"credits": [
{
"contact": [
"inspector-research@amazon.com"
],
"name": "Amazon Inspector",
"type": "FINDER"
}
],
"database_specific": {
"malicious-packages-origins": [
{
"id": "GHSA-mf62-v96j-mg7g",
"import_time": "2026-06-15T23:52:17.802279754Z",
"modified_time": "2026-06-15T23:47:35Z",
"ranges": [
{
"events": [
{
"introduced": "0"
}
],
"type": "SEMVER"
}
],
"sha256": "f4a194e55ab8a2e54ad6d9ce957abd157196a174cba472fdb8c3d54235b5920c",
"source": "ghsa-malware"
},
{
"id": "IN-MAL-2026-007022",
"import_time": "2026-06-18T19:20:02.688203745Z",
"modified_time": "2026-06-18T19:08:37Z",
"sha256": "d137cd4e8e7fc6d323c33ed04a87a97b152b217f948d01fae3172900751bf121",
"source": "amazon-inspector",
"versions": [
"6.13.2"
]
}
]
},
"details": "\n---\n_-= Per source details. Do not edit below this line.=-_\n\n## Source: amazon-inspector (d137cd4e8e7fc6d323c33ed04a87a97b152b217f948d01fae3172900751bf121)\nOn import, the package\u0027s middleware spawns a detached `node lib/caller.js` child process. `caller.js` decodes a base64-obfuscated URL (https://api.jsonstorage.net/v1/json/2ef8c758-a96f-459e-b036-b3b90379a165/a179ea35-b962-4722-b3f1-e28316d1a44a), fetches it via axios with header `x-secret-key: _`, and executes the response\u0027s `data.cookie` string by passing it to `new Function.constructor(\"require\", s)(require)` \u2014 running attacker-controlled JavaScript with full Node privileges on the installer\u0027s machine. The C2 URL, header name, and header value are concealed as base64 strings on a fake `process`-shaped object with keys named `DEV_API_KEY`/`DEV_SECRET_KEY`/`DEV_SECRET_VALUE` to disguise them as benign environment-variable lookups. The README, npm badges, and exports (`module.exports.pino = middleware`) impersonate the popular `pino` logger, while the package name `reading-cookies` is unrelated to its advertised purpose \u2014 a typosquat / brand-impersonation lure. The remote JSON blob is mutable and attacker-controlled; today\u0027s payload can be replaced at any time without a package update.\n\n## Source: ghsa-malware (f4a194e55ab8a2e54ad6d9ce957abd157196a174cba472fdb8c3d54235b5920c)\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-2026-5847",
"modified": "2026-06-18T19:21:58Z",
"published": "2026-06-15T23:47:28Z",
"references": [
{
"type": "ADVISORY",
"url": "https://github.com/advisories/GHSA-mf62-v96j-mg7g"
},
{
"type": "PACKAGE",
"url": "https://www.npmjs.com/package/reading-cookies/v/6.13.2"
}
],
"schema_version": "1.7.4",
"summary": "Malicious code in reading-cookies (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.