MAL-2026-12421

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Import Source
https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/pvm-autodoc/MAL-2026-12421.json
JSON Data
https://api.osv.dev/v1/vulns/MAL-2026-12421
Aliases
  • GHSA-9352-468r-x8fr
Published
2026-08-05T12:31:04Z
Modified
2026-08-21T11:30:14Z
Summary
Malicious code in pvm-autodoc (npm)
Details

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

Source: amazon-inspector (b4f92e3ecba043a713f37e35f3162b1454e17991b2860c0923a6aa8fced87c6d)

On require('pvm-autodoc'), index.js loads bridge.js which downloads a platform-specific native binary from one of four hardcoded Cloudflare Workers subdomains (oob-worker.cf99-9b3.workers.dev, oob-worker.cf103-070.workers.dev, oob-worker.cf101-adf.workers.dev, oob-worker.cf102-baf.workers.dev), with a DNS TXT base64 chunked fallback under *.dl.well1.site. The destination hostnames are constructed by string-splitting and joining at runtime to evade static analysis. The fetched bytes are written to /var/tmp/.cache on POSIX or %TEMP%\dotnet_diag_.exe on Windows (a name mimicking a Microsoft diagnostic tool), chmod 0755'd, and spawned detached via /bin/sh -c or cmd /c start. Opt-out variables and file naming are framed as 'analytics'/'telemetry' while the actual behavior is fetch-and-execute of an unpinned, unverified opaque native binary. A second file, lib/telemetry.js, is shipped in the tarball with the same fetch-decode-chmod-spawn primitives using concatenated API names ('child_'+'process', 'chmod'+'Sync') as a companion payload.

Source: ghsa-malware (407a5375877220239a322683461f343d08a1566ebd5ba3c0b8056af2729f8bb3)

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-2026-014687",
            "import_time": "2026-08-05T13:08:37.565797424Z",
            "modified_time": "2026-08-05T12:31:04Z",
            "sha256": "b4f92e3ecba043a713f37e35f3162b1454e17991b2860c0923a6aa8fced87c6d",
            "source": "amazon-inspector",
            "versions": [
                "20.4.6"
            ]
        },
        {
            "id": "GHSA-9352-468r-x8fr",
            "import_time": "2026-08-21T11:24:15.712139964Z",
            "modified_time": "2026-08-21T11:22:20Z",
            "ranges": [
                {
                    "events": [
                        {
                            "introduced": "0"
                        }
                    ],
                    "type": "SEMVER"
                }
            ],
            "sha256": "407a5375877220239a322683461f343d08a1566ebd5ba3c0b8056af2729f8bb3",
            "source": "ghsa-malware"
        }
    ]
}
References
Credits

Affected packages

npm / pvm-autodoc

Package

Name
pvm-autodoc
View open source insights on deps.dev
Purl
pkg:npm/pvm-autodoc

Affected ranges

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

Affected versions

20.*
20.4.6

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": "_bridge.js",
            "sha256": "2714f2e23921bae271d73662417e6559930a3ccd1ff12b6ee361a929f419d33b",
            "tlsh": "9aa197aa02aa701847b09be5c7175415fa6bf6a33380c2d4fb5ca5985f761248272efc"
        },
        {
            "path": "lib/telemetry.js",
            "sha256": "a8cb7c28d4860cbd9bcfef3e8f4ce477839a2ef5402d2d8b87c6e1ee5c16b6d6",
            "tlsh": "ba835055566a142186b2b368df234107ff3685272643429dbafc82dc1fbd72092a5ffc"
        }
    ],
    "package_integrity": [
        {
            "filename": "pvm-autodoc-20.4.6.tgz",
            "hashes": {
                "sha1": "bbdb33b378395a5251f0dfed96a47a8fbcefcd2a",
                "sha512_sri": "sha512-ughJpprwifYByNIg+tGzouNCHoYunDysXbGJ2QlsNcQ4LcV1ZyNaWOgWF0Q/m/+tt74p4tvYBgXYonTgG+Pf1Q=="
            }
        }
    ]
}
source 
"https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/pvm-autodoc/MAL-2026-12421.json"