MAL-2026-17229

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Import Source
https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/simple-date-formatter-new-12/MAL-2026-17229.json
JSON Data
https://api.osv.dev/v1/vulns/MAL-2026-17229
Published
2026-09-28T18:08:15Z
Modified
2026-09-28T18:30:06Z
Summary
Malicious code in simple-date-formatter-new-12 (npm)
Details

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

Source: amazon-inspector (bd79db99adb8878673dd85db5a29661432808fa8fcc5e3d750b907418df8ae5f)

npm package simple-date-formatter-new-12@1.0.0 declares a postinstall lifecycle script in package.json that runs automatically on npm install. The script uses curl to fetch an internal Baidu host (http://bsrc-ssrf.n.baidu-int.com/...), writes the response to /tmp/bsrc.txt, and POSTs the contents to an attacker-controlled interactsh collector at pdxkwzizhzzdpzpgcieqk6d1v7ynqsgfo.oast.fun/bsrc. The package's advertised purpose is a trivial date-formatting wrapper (index.js exports a single formatDate function); the SSRF probe and outbound exfiltration are unrelated to that purpose. The name shape (simple-date-formatter-new-12), empty author metadata, and OAST beacon are consistent with a dependency-confusion / typosquat probe designed to detect installation inside a target organization and leak internal network responses reachable from the installer's network position to a third-party collector.

Database specific 
{
    "malicious-packages-origins":  [
        {
            "id":  "IN-MAL-2026-020609",
            "import_time":  "2026-09-28T18:24:40.812632607Z",
            "modified_time":  "2026-09-28T18:08:15Z",
            "sha256":  "bd79db99adb8878673dd85db5a29661432808fa8fcc5e3d750b907418df8ae5f",
            "source":  "amazon-inspector",
            "versions":  [
                "1.0.0"
            ]
        }
    ]
}
References
Credits

Affected packages

npm / simple-date-formatter-new-12

Package

Name
simple-date-formatter-new-12
View open source insights on deps.dev
Purl
pkg:npm/simple-date-formatter-new-12

Affected ranges

Affected versions

1.*
1.0.0

Database specific

cwes 
[
    {
        "cweId":  "CWE-506",
        "description":  "The product contains code that appears to be malicious in nature.",
        "name":  "Embedded Malicious Code"
    }
]
indicators 
{
    "evidence_files":  [
        {
            "path":  "package.json",
            "sha256":  "b4d64adc3fc3bb08e95661f461973e58576b1800650da2dba44eff2548dcffa9",
            "tlsh":  "3af05c44d6046db357c386fc9a66050e7b01ae1714447d05b3aa08ac839aef641ba30f"
        }
    ],
    "package_integrity":  [
        {
            "filename":  "simple-date-formatter-new-12-1.0.0.tgz",
            "hashes":  {
                "sha1":  "040d3c85a17f9e618d8e22b6cd60394ef9c7f60f",
                "sha512_sri":  "sha512-fKDny5UVQjvfzJkCUcTJ5vw4m/I90MHxhGQd0QvmEVFZKgfVncxB8b1+/Yy9zzxSqrpjyMXg/HSXGPH+SOio5w=="
            }
        }
    ]
}
source 
"https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/simple-date-formatter-new-12/MAL-2026-17229.json"