MAL-2026-6195

See a problem?
Import Source
https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/ts-linter-builders/MAL-2026-6195.json
JSON Data
https://api.osv.dev/v1/vulns/MAL-2026-6195
Aliases
  • GHSA-4g6m-jp93-p5x7
Published
2026-06-19T04:30:48Z
Modified
2026-07-14T16:49:21.815247130Z
Summary
Malicious code in ts-linter-builders (npm)
Details

-= Per source details. Do not edit below this line.=-

Source: amazon-inspector (a22153f1e71ba9fb51ce22d5fc57180ce4d8998995fbc4bd554d6dd532c195b6)

index.js imports childprocess and contains a hardcoded outbound POST to https://tg-wallet-manager.vercel.app, with additional fetch() calls to the same destination. The code reads environment data and host identifiers and ships them to this attacker-controlled endpoint. The package name advertises a TypeScript linter helper, but the embedded behavior is unrelated to linting and matches the shape of a credential/host-info beacon. The hardcoded third-party Vercel-hosted endpoint, combined with environment reads and childprocess import, constitutes an installer-side exfiltration / RCE staging surface with no legitimate purpose for a 'linter builder' package.

Source: ghsa-malware (2a2b47ddd2e24a8269621e11c9efefb480f00b13dc8cdfb901e2eac526a83874)

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.

Database specific 
{
    "malicious-packages-origins": [
        {
            "id": "IN-MAL-2026-007045",
            "sha256": "a22153f1e71ba9fb51ce22d5fc57180ce4d8998995fbc4bd554d6dd532c195b6",
            "modified_time": "2026-06-19T04:30:48Z",
            "versions": [
                "1.0.4"
            ],
            "source": "amazon-inspector",
            "import_time": "2026-06-19T05:16:48.600745745Z"
        },
        {
            "source": "ghsa-malware",
            "sha256": "2a2b47ddd2e24a8269621e11c9efefb480f00b13dc8cdfb901e2eac526a83874",
            "import_time": "2026-07-14T16:42:20.568383249Z",
            "ranges": [
                {
                    "type": "SEMVER",
                    "events": [
                        {
                            "introduced": "0"
                        }
                    ]
                }
            ],
            "id": "GHSA-4g6m-jp93-p5x7",
            "modified_time": "2026-07-14T16:12:14Z"
        }
    ]
}
References
Credits

Affected packages

npm / ts-linter-builders

Package

Name
ts-linter-builders
View open source insights on deps.dev
Purl
pkg:npm/ts-linter-builders

Affected ranges

Type
SEMVER
Events
Introduced
0Unknown introduced version / All previous versions are affected

Affected versions

1.*
1.0.4

Database specific

cwes 
[
    {
        "cweId": "CWE-506",
        "name": "Embedded Malicious Code",
        "description": "The product contains code that appears to be malicious in nature."
    },
    {
        "cweId": "CWE-506",
        "name": "Embedded Malicious Code",
        "description": "The product contains code that appears to be malicious in nature."
    }
]
indicators 
{
    "package_integrity": [
        {
            "filename": "ts-linter-builders-1.0.4.tgz",
            "hashes": {
                "sha1": "b2b1e7e742e14de6f25aaed7e0eb43d651f949e3",
                "sha512_sri": "sha512-pD2FpJNDdBZ4OTc6yapxR4iYqBBkzlOCfqvjlBLqu36W7LZQuZZakGkxcK6084DFlIGC2Si82QT4tvAZX0a//g=="
            }
        }
    ],
    "evidence_files": [
        {
            "tlsh": "28f164d991372661cfb233b85a03100dfbdad12339028651b6ec46486f7b52865e2eee",
            "sha256": "40f9a81d39fc4fc5a1895aa2f82b01fab53b5eae8b61c80885affddb485db439",
            "path": "index.js"
        }
    ]
}
source 
"https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/ts-linter-builders/MAL-2026-6195.json"