CWE-506
Allowed-with-ReviewEmbedded Malicious Code
Abstraction: Class · Status: Incomplete
The product contains code that appears to be malicious in nature.
548 vulnerabilities reference this CWE, most recent first.
GHSA-5FM9-JMV7-FCX5
Vulnerability from github – Published: 2020-09-02 18:35 – Updated: 2021-10-01 13:47All versions of asynnc typosquatted a popular package of similar name and tracked users who had installed the incorrect package. The package uploaded information to a remote server including: name of the downloaded package, name of the intended package, the Node version and whether the process was running as sudo. There is no further compromise.
Recommendation
Remove the package from your dependencies and always ensure package names are typed correctly upon installation.
{
"affected": [
{
"package": {
"ecosystem": "npm",
"name": "asynnc"
},
"ranges": [
{
"events": [
{
"introduced": "0"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"aliases": [],
"database_specific": {
"cwe_ids": [
"CWE-506"
],
"github_reviewed": true,
"github_reviewed_at": "2020-08-31T18:37:48Z",
"nvd_published_at": null,
"severity": "CRITICAL"
},
"details": "All versions of `asynnc` typosquatted a popular package of similar name and tracked users who had installed the incorrect package. The package uploaded information to a remote server including: name of the downloaded package, name of the intended package, the Node version and whether the process was running as sudo. There is no further compromise.\n\n\n## Recommendation\n\nRemove the package from your dependencies and always ensure package names are typed correctly upon installation.",
"id": "GHSA-5fm9-jmv7-fcx5",
"modified": "2021-10-01T13:47:05Z",
"published": "2020-09-02T18:35:26Z",
"references": [
{
"type": "WEB",
"url": "https://www.npmjs.com/advisories/842"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
],
"summary": "Malicious Package in asynnc"
}
GHSA-5FVM-P68V-5WMH
Vulnerability from github – Published: 2025-09-15 22:03 – Updated: 2025-09-15 22:03Impact
On 8 September 2025, an npm publishing account for color-name was taken over after a phishing attack. Version 2.0.1 was published, functionally identical to the previous patch version, but with a malware payload added attempting to redirect cryptocurrency transactions to the attacker's own addresses from within browser environments.
Local environments, server environments, command line applications, etc. are not affected. If the package was used in a browser context (e.g. a direct <script> inclusion, or via a bundling tool such as Babel, Rollup, Vite, Next.js, etc.) there is a chance the malware still exists and such bundles will need to be rebuilt.
The malware seemingly only targets cryptocurrency transactions and wallets such as MetaMask. See references below for more information on the payload.
Patches
npm removed the offending package from the registry over the course of the day on 8 September, preventing further downloads from npm proper.
On 13 September, the package owner published new patch versions to help cache-bust those using private registries who might still have the compromised version cached. This version is functionally identical to the previously known-good version, published as a patch version bump above the compromised version.
Users should update to the latest patch version, completely remove their node_modules directory, clean their package manager's global cache, and rebuild any browser bundles from scratch.
Those operating private registries or registry mirrors should purge the offending versions from any caches.
Resources
- https://www.aikido.dev/blog/npm-debug-and-chalk-packages-compromised
- https://socket.dev/blog/npm-author-qix-compromised-in-major-supply-chain-attack
- https://www.ox.security/blog/npm-packages-compromised/
Point of Contact
In the event suspicious behavior is still observed for the package listed in this security advisory after performing all of the above cleaning operations (see Patches above), please reach out via one of the following channels of communication:
- Bluesky, compromised publishing account owner: https://bsky.app/profile/bad-at-computer.bsky.social
debugrepository, tracking issue (applies to all packages affected in the breach): https://github.com/debug-js/debug/issues/1005
{
"affected": [
{
"package": {
"ecosystem": "npm",
"name": "color-name"
},
"ranges": [
{
"events": [
{
"introduced": "2.0.1"
},
{
"fixed": "2.0.2"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"2.0.1"
]
}
],
"aliases": [
"CVE-2025-59145"
],
"database_specific": {
"cwe_ids": [
"CWE-506"
],
"github_reviewed": true,
"github_reviewed_at": "2025-09-15T22:03:28Z",
"nvd_published_at": "2025-09-15T21:15:36Z",
"severity": "HIGH"
},
"details": "### Impact\nOn 8 September 2025, an npm publishing account for `color-name` was taken over after a phishing attack. Version `2.0.1` was published, functionally identical to the previous patch version, but with a malware payload added attempting to redirect cryptocurrency transactions to the attacker\u0027s own addresses from within browser environments.\n\nLocal environments, server environments, command line applications, etc. are not affected. If the package was used in a browser context (e.g. a direct `\u003cscript\u003e` inclusion, or via a bundling tool such as Babel, Rollup, Vite, Next.js, etc.) there is a chance the malware still exists and such bundles will need to be rebuilt.\n\nThe malware seemingly only targets cryptocurrency transactions and wallets such as MetaMask. See references below for more information on the payload.\n\n### Patches\nnpm removed the offending package from the registry over the course of the day on 8 September, preventing further downloads from npm proper.\n\nOn 13 September, the package owner published new patch versions to help cache-bust those using private registries who might still have the compromised version cached. This version is functionally identical to the previously known-good version, published as a patch version bump above the compromised version.\n\nUsers should update to the latest patch version, completely remove their `node_modules` directory, clean their package manager\u0027s global cache, and rebuild any browser bundles from scratch.\n\nThose operating private registries or registry mirrors should purge the offending versions from any caches.\n\n### Resources\n- https://www.aikido.dev/blog/npm-debug-and-chalk-packages-compromised\n- https://socket.dev/blog/npm-author-qix-compromised-in-major-supply-chain-attack\n- https://www.ox.security/blog/npm-packages-compromised/\n\n### Point of Contact\nIn the event suspicious behavior is still observed for the package listed in this security advisory after performing all of the above cleaning operations (see _Patches_ above), please reach out via one of the following channels of communication:\n\n- Bluesky, compromised publishing account owner: https://bsky.app/profile/bad-at-computer.bsky.social\n- `debug` repository, tracking issue (applies to all packages affected in the breach): https://github.com/debug-js/debug/issues/1005",
"id": "GHSA-5fvm-p68v-5wmh",
"modified": "2025-09-15T22:03:28Z",
"published": "2025-09-15T22:03:28Z",
"references": [
{
"type": "WEB",
"url": "https://github.com/colorjs/color-name/security/advisories/GHSA-5fvm-p68v-5wmh"
},
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2025-59145"
},
{
"type": "WEB",
"url": "https://github.com/debug-js/debug/issues/1005"
},
{
"type": "PACKAGE",
"url": "https://github.com/colorjs/color-name"
},
{
"type": "WEB",
"url": "https://socket.dev/blog/npm-author-qix-compromised-in-major-supply-chain-attack"
},
{
"type": "WEB",
"url": "https://www.aikido.dev/blog/npm-debug-and-chalk-packages-compromised"
},
{
"type": "WEB",
"url": "https://www.ox.security/blog/npm-packages-compromised"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:H/VA:N/SC:N/SI:N/SA:N/E:A/U:Red",
"type": "CVSS_V4"
}
],
"summary": "color-name@2.0.1 contains malware after npm account takeover"
}
GHSA-5G4X-QGJ2-956V
Vulnerability from github – Published: 2026-08-21 03:31 – Updated: 2026-08-21 03:31The internment crate 0.8.7 for Rust can trigger execution of malicious code when compiling a project that uses the crate, because it has a rogue dependency that registers with a command-and-control server to offer arbitrary code execution.
{
"affected": [],
"aliases": [
"CVE-2026-77649"
],
"database_specific": {
"cwe_ids": [
"CWE-506"
],
"github_reviewed": false,
"github_reviewed_at": null,
"nvd_published_at": "2026-08-21T01:17:01Z",
"severity": "CRITICAL"
},
"details": "The internment crate 0.8.7 for Rust can trigger execution of malicious code when compiling a project that uses the crate, because it has a rogue dependency that registers with a command-and-control server to offer arbitrary code execution.",
"id": "GHSA-5g4x-qgj2-956v",
"modified": "2026-08-21T03:31:22Z",
"published": "2026-08-21T03:31:22Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2026-77649"
},
{
"type": "WEB",
"url": "https://github.com/rustsec/advisory-db/issues/3161"
},
{
"type": "WEB",
"url": "https://blog.rust-lang.org/2026/08/20/supply-chain-attack-on-arrayref"
},
{
"type": "WEB",
"url": "https://rustsec.org/advisories/RUSTSEC-2026-0266.html"
},
{
"type": "WEB",
"url": "https://safedep.io/arrayref-proc-macro1-rust-build-time-malware"
},
{
"type": "WEB",
"url": "https://www.stepsecurity.io/blog/arrayref-rust-crate-supply-chain-attack"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
]
}
GHSA-5GGX-G294-QJ3Q
Vulnerability from github – Published: 2020-09-03 21:47 – Updated: 2021-09-29 20:57Version 2.0.2 contained malicious code. The package targeted the Ethereum cryptocurrency and performed transactions to wallets not controlled by the user.
Recommendation
Remove the package from your environment. Ensure no Ethereum funds were compromised.
{
"affected": [
{
"package": {
"ecosystem": "npm",
"name": "buffeb-xor"
},
"ranges": [
{
"events": [
{
"introduced": "0.0.0"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"aliases": [],
"database_specific": {
"cwe_ids": [
"CWE-506"
],
"github_reviewed": true,
"github_reviewed_at": "2020-08-31T18:51:57Z",
"nvd_published_at": null,
"severity": "CRITICAL"
},
"details": "Version 2.0.2 contained malicious code. The package targeted the Ethereum cryptocurrency and performed transactions to wallets not controlled by the user.\n\n\n## Recommendation\n\nRemove the package from your environment. Ensure no Ethereum funds were compromised.",
"id": "GHSA-5ggx-g294-qj3q",
"modified": "2021-09-29T20:57:42Z",
"published": "2020-09-03T21:47:29Z",
"references": [
{
"type": "WEB",
"url": "https://www.npmjs.com/advisories/1239"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
],
"summary": "Malicious Package in buffeb-xor"
}
GHSA-5HXW-R847-QFWP
Vulnerability from github – Published: 2018-08-29 23:47 – Updated: 2023-09-07 18:31opencv.js was a malicious module published with the intent to hijack environment variables. It has been unpublished by npm.
{
"affected": [
{
"package": {
"ecosystem": "npm",
"name": "opencv.js"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"last_affected": "1.2.1"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"aliases": [
"CVE-2017-16066"
],
"database_specific": {
"cwe_ids": [
"CWE-506"
],
"github_reviewed": true,
"github_reviewed_at": "2020-06-16T21:16:22Z",
"nvd_published_at": null,
"severity": "HIGH"
},
"details": "opencv.js was a malicious module published with the intent to hijack environment variables. It has been unpublished by npm.",
"id": "GHSA-5hxw-r847-qfwp",
"modified": "2023-09-07T18:31:39Z",
"published": "2018-08-29T23:47:07Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2017-16066"
},
{
"type": "ADVISORY",
"url": "https://github.com/advisories/GHSA-5hxw-r847-qfwp"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
"type": "CVSS_V3"
}
],
"summary": "opencv.js is malware"
}
GHSA-5JGP-PG4F-Q8VJ
Vulnerability from github – Published: 2020-09-03 19:55 – Updated: 2021-09-30 20:27This package contained malicious code. The package uploaded system information such as OS and hostname to a remote server.
Recommendation
Remove the package from your environment. There are no indications of further compromise.
{
"affected": [
{
"package": {
"ecosystem": "npm",
"name": "node-ftp"
},
"ranges": [
{
"events": [
{
"introduced": "0.0.0"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"aliases": [],
"database_specific": {
"cwe_ids": [
"CWE-506"
],
"github_reviewed": true,
"github_reviewed_at": "2020-08-31T18:48:36Z",
"nvd_published_at": null,
"severity": "CRITICAL"
},
"details": "This package contained malicious code. The package uploaded system information such as OS and hostname to a remote server.\n\n\n## Recommendation\n\nRemove the package from your environment. There are no indications of further compromise.",
"id": "GHSA-5jgp-pg4f-q8vj",
"modified": "2021-09-30T20:27:21Z",
"published": "2020-09-03T19:55:42Z",
"references": [
{
"type": "WEB",
"url": "https://www.npmjs.com/advisories/1137"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
],
"summary": "Malicious Package in node-ftp"
}
GHSA-5MG7-485Q-XM76
Vulnerability from github – Published: 2026-03-25 14:25 – Updated: 2026-03-27 00:32After an API Token exposure from an exploited trivy dependency, two new releases of litellm were uploaded to PyPI containing automatically activated malware, harvesting sensitive credentials and files, and exfiltrating to a remote API.
Anyone who has installed and run the project should assume any credentials available to litellm environment may have been exposed, and revoke/rotate thema ccordingly.
{
"affected": [
{
"package": {
"ecosystem": "PyPI",
"name": "litellm"
},
"ranges": [
{
"events": [
{
"introduced": "1.82.7"
},
{
"last_affected": "1.82.8"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"aliases": [],
"database_specific": {
"cwe_ids": [
"CWE-506"
],
"github_reviewed": true,
"github_reviewed_at": "2026-03-25T14:25:42Z",
"nvd_published_at": null,
"severity": "CRITICAL"
},
"details": "After an API Token exposure from an exploited trivy dependency, two new releases of `litellm` were uploaded to PyPI containing automatically activated malware, harvesting sensitive credentials and files, and exfiltrating to a remote API.\n\nAnyone who has installed and run the project should assume any credentials available to litellm environment may have been exposed, and revoke/rotate thema ccordingly.",
"id": "GHSA-5mg7-485q-xm76",
"modified": "2026-03-27T00:32:11Z",
"published": "2026-03-25T14:25:42Z",
"references": [
{
"type": "WEB",
"url": "https://github.com/BerriAI/litellm/issues/24518"
},
{
"type": "WEB",
"url": "https://docs.litellm.ai/blog/security-update-march-2026"
},
{
"type": "WEB",
"url": "https://futuresearch.ai/blog/litellm-pypi-supply-chain-attack"
},
{
"type": "PACKAGE",
"url": "https://github.com/BerriAI/litellm"
},
{
"type": "WEB",
"url": "https://github.com/pypa/advisory-database/tree/main/vulns/litellm/PYSEC-2026-2.yaml"
},
{
"type": "WEB",
"url": "https://inspector.pypi.io/project/litellm/1.82.7/packages/79/5f/b6998d42c6ccd32d36e12661f2734602e72a576d52a51f4245aef0b20b4d/litellm-1.82.7-py3-none-any.whl/litellm/proxy/proxy_server.py#line.130"
},
{
"type": "WEB",
"url": "https://inspector.pypi.io/project/litellm/1.82.8/packages/f6/2c/731b614e6cee0bca1e010a36fd381fba69ee836fe3cb6753ba23ef2b9601/litellm-1.82.8.tar.gz/litellm-1.82.8/litellm_init.pth#line.1"
},
{
"type": "WEB",
"url": "https://www.wiz.io/blog/teampcp-attack-kics-github-action"
}
],
"schema_version": "1.4.0",
"severity": [],
"summary": "Two LiteLLM versions published containing credential harvesting malware"
}
GHSA-5MHV-9QW8-J63G
Vulnerability from github – Published: 2018-11-09 17:43 – Updated: 2023-09-11 16:18The mssql.js package is a piece of malware that steals environment variables and sends them to attacker controlled locations.
All versions have been unpublished from the npm registry.
Recommendation
As this package is malware, if you find it installed in your environment, the real security concern is determining how it got there.
If you have found this installed in your environment, you should: 1. Delete the package 2. Clear your npm cache 3. Ensure it is not present in any other package.json files on your system 4. Regenerate your registry credentials, tokens, and any other sensitive credentials that may have been present in your environment variables.
Additionally, any service which may have been exposed via credentials in your environment variables, such as a database, should be reviewed for indicators of compromise as well.
{
"affected": [
{
"package": {
"ecosystem": "npm",
"name": "mssql.js"
},
"ranges": [
{
"events": [
{
"introduced": "0"
},
{
"last_affected": "1.0.2"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"aliases": [
"CVE-2017-16056"
],
"database_specific": {
"cwe_ids": [
"CWE-506"
],
"github_reviewed": true,
"github_reviewed_at": "2020-06-16T21:16:43Z",
"nvd_published_at": null,
"severity": "HIGH"
},
"details": "The `mssql.js` package is a piece of malware that steals environment variables and sends them to attacker controlled locations. \n\nAll versions have been unpublished from the npm registry.\n\n\n## Recommendation\n\nAs this package is malware, if you find it installed in your environment, the real security concern is determining how it got there. \n\nIf you have found this installed in your environment, you should:\n1. Delete the package\n2. Clear your npm cache\n3. Ensure it is not present in any other package.json files on your system\n4. Regenerate your registry credentials, tokens, and any other sensitive credentials that may have been present in your environment variables. \n\nAdditionally, any service which may have been exposed via credentials in your environment variables, such as a database, should be reviewed for indicators of compromise as well.",
"id": "GHSA-5mhv-9qw8-j63g",
"modified": "2023-09-11T16:18:34Z",
"published": "2018-11-09T17:43:03Z",
"references": [
{
"type": "ADVISORY",
"url": "https://nvd.nist.gov/vuln/detail/CVE-2017-16056"
},
{
"type": "ADVISORY",
"url": "https://github.com/advisories/GHSA-5mhv-9qw8-j63g"
},
{
"type": "WEB",
"url": "https://www.npmjs.com/advisories/485"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N",
"type": "CVSS_V3"
}
],
"summary": "mssql.js is malware"
}
GHSA-5MM9-55C9-P5R7
Vulnerability from github – Published: 2020-09-03 19:53 – Updated: 2021-09-30 20:26This package contained malicious code. The package uploaded system information such as OS and hostname to a remote server.
Recommendation
Remove the package from your environment. There are no indications of further compromise.
{
"affected": [
{
"package": {
"ecosystem": "npm",
"name": "mogoose"
},
"ranges": [
{
"events": [
{
"introduced": "0.0.0"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"aliases": [],
"database_specific": {
"cwe_ids": [
"CWE-506"
],
"github_reviewed": true,
"github_reviewed_at": "2020-08-31T18:48:31Z",
"nvd_published_at": null,
"severity": "CRITICAL"
},
"details": "This package contained malicious code. The package uploaded system information such as OS and hostname to a remote server.\n\n\n## Recommendation\n\nRemove the package from your environment. There are no indications of further compromise.",
"id": "GHSA-5mm9-55c9-p5r7",
"modified": "2021-09-30T20:26:48Z",
"published": "2020-09-03T19:53:31Z",
"references": [
{
"type": "WEB",
"url": "https://www.npmjs.com/advisories/1135"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
],
"summary": "Malicious Package in mogoose"
}
GHSA-5WQ6-V5CW-JVFR
Vulnerability from github – Published: 2020-09-03 23:03 – Updated: 2021-09-30 17:12Version 0.8.0 contained malicious code. The package targeted the Ethereum cryptocurrency and performed transactions to wallets not controlled by the user.
Recommendation
Remove the package from your environment. Ensure no Ethereum funds were compromised.
{
"affected": [
{
"package": {
"ecosystem": "npm",
"name": "js-shas"
},
"ranges": [
{
"events": [
{
"introduced": "0.0.0"
}
],
"type": "ECOSYSTEM"
}
]
}
],
"aliases": [],
"database_specific": {
"cwe_ids": [
"CWE-506"
],
"github_reviewed": true,
"github_reviewed_at": "2020-08-31T18:53:46Z",
"nvd_published_at": null,
"severity": "CRITICAL"
},
"details": "Version 0.8.0 contained malicious code. The package targeted the Ethereum cryptocurrency and performed transactions to wallets not controlled by the user.\n\n\n## Recommendation\n\nRemove the package from your environment. Ensure no Ethereum funds were compromised.",
"id": "GHSA-5wq6-v5cw-jvfr",
"modified": "2021-09-30T17:12:55Z",
"published": "2020-09-03T23:03:36Z",
"references": [
{
"type": "WEB",
"url": "https://www.npmjs.com/advisories/1285"
}
],
"schema_version": "1.4.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
"type": "CVSS_V3"
}
],
"summary": "Malicious Package in js-shas"
}
Mitigation
Remove the malicious code and start an effort to ensure that no more malicious code exists. This may require a detailed review of all code, as it is possible to hide a serious attack in only one or two lines of code. These lines may be located almost anywhere in an application and may have been intentionally obfuscated by the attacker.
CAPEC-442: Infected Software
An adversary adds malicious logic, often in the form of a computer virus, to otherwise benign software. This logic is often hidden from the user of the software and works behind the scenes to achieve negative impacts. Many times, the malicious logic is inserted into empty space between legitimate code, and is then called when the software is executed. This pattern of attack focuses on software already fielded and used in operation as opposed to software that is still under development and part of the supply chain.
CAPEC-448: Embed Virus into DLL
An adversary tampers with a DLL and embeds a computer virus into gaps between legitimate machine instructions. These gaps may be the result of compiler optimizations that pad memory blocks for performance gains. The embedded virus then attempts to infect any machine which interfaces with the product, and possibly steal private data or eavesdrop.
CAPEC-636: Hiding Malicious Data or Code within Files
Files on various operating systems can have a complex format which allows for the storage of other data, in addition to its contents. Often this is metadata about the file, such as a cached thumbnail for an image file. Unless utilities are invoked in a particular way, this data is not visible during the normal use of the file. It is possible for an attacker to store malicious data or code using these facilities, which would be difficult to discover.