MAL-2026-4192

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Import Source
https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/iv-stubborn/MAL-2026-4192.json
JSON Data
https://api.osv.dev/v1/vulns/MAL-2026-4192
Aliases
  • GHSA-g54w-82gq-9mwp
Published
2026-05-20T16:44:52Z
Modified
2026-05-26T06:02:37.570948779Z
Summary
Malicious code in iv-stubborn (npm)
Details

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

Source: amazon-inspector (9b8934157781e3457974f0609c54f14503424c9077b316f2e8e843e454989922)

On npm install, both preinstall and postinstall lifecycle hooks execute index.js, which collects the installer's hostname, all non-internal network interface IP addresses, current working directory, and a specific environment variable (SECURITYBUGBOUNTYDOCTOLIBIS_PWN), and POSTs them as JSON over plain HTTP to http://poc.khz.bar/install. The README (# @doctolib-apps/native-personalized-services — Claimed by dphoeniixx) indicates this package was published as a dependency-confusion claim against an internal scope. Regardless of stated bug-bounty intent, any developer or build system that installs iv-stubborn automatically transmits internal-network identifiers to a third-party server without consent. The combination of namespace-confusion targeting plus install-time beaconing of host data over plaintext HTTP is a supply-chain attack pattern.

Source: ghsa-malware (664c83f413276c9f58fdea8602bd0fd8e6a94e9c636cccf3871145d88507b3a7)

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": [
        {
            "modified_time": "2026-05-20T16:44:52Z",
            "ranges": [
                {
                    "events": [
                        {
                            "introduced": "0"
                        }
                    ],
                    "type": "SEMVER"
                }
            ],
            "sha256": "664c83f413276c9f58fdea8602bd0fd8e6a94e9c636cccf3871145d88507b3a7",
            "id": "GHSA-g54w-82gq-9mwp",
            "source": "ghsa-malware",
            "import_time": "2026-05-20T17:21:42.624224465Z"
        },
        {
            "import_time": "2026-05-26T05:50:55.635437922Z",
            "versions": [
                "1.1.1"
            ],
            "sha256": "5bdc03d6203a73d0cf08c2ed7920c438e57b3b720ed0a09536303c503b2fcab1",
            "id": "IN-MAL-2026-003594",
            "source": "amazon-inspector",
            "modified_time": "2026-05-20T18:59:53Z"
        },
        {
            "modified_time": "2026-05-20T18:59:53Z",
            "versions": [
                "1.1.1"
            ],
            "sha256": "9b8934157781e3457974f0609c54f14503424c9077b316f2e8e843e454989922",
            "id": "IN-MAL-2026-003593",
            "source": "amazon-inspector",
            "import_time": "2026-05-26T05:50:55.480405903Z"
        }
    ]
}
References
Credits

Affected packages

npm / iv-stubborn

Package

Name
iv-stubborn
View open source insights on deps.dev
Purl
pkg:npm/iv-stubborn

Affected ranges

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

Affected versions

1.*
1.1.1

Database specific

indicators 
{
    "domains": [
        "poc.khz.bar"
    ],
    "evidence_files": [
        {
            "sha256": "aa72234c06a386ea37b9a337ff40b8c84deaf64a39a15b6b1c978a2ec937bd6f",
            "tlsh": "3e11d0f181b2566015f962d4d895ac095663c223720ba9907bcc01305fce9fb00b13d8",
            "path": "index.js"
        },
        {
            "sha256": "adc9baf6a61fa76788af8c0bb8d28a5eba201c03ea1db292e30b38714ef7031c",
            "tlsh": "f9a02400d5431c503d0c01447f3050c014403071533d37131fd40003c4cfc754141734",
            "path": "README.md"
        }
    ],
    "package_integrity": [
        {
            "filename": "iv-stubborn-1.1.1.tgz",
            "hashes": {
                "sha512_sri": "sha512-DuexUYwUv+bb1shn3WZWlB7fVoElUyEMJsvSjSpVPPY0n6l2PuFGXIaMs1mP5Zd08tumD3Vq+QSIGE/MRP93uQ==",
                "sha1": "20b9048c910ccdf1ead61946ed23df827a300e4a"
            }
        }
    ]
}
source 
"https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/iv-stubborn/MAL-2026-4192.json"
cwes 
[
    {
        "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",
        "cweId": "CWE-506"
    }
]