MAL-2026-16386

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Import Source
https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/@mikudeveloper/baileys/MAL-2026-16386.json
JSON Data
https://api.osv.dev/v1/vulns/MAL-2026-16386
Aliases
  • GHSA-2xx9-x9v7-25x2
Published
2026-09-22T16:05:11Z
Modified
2026-10-12T15:45:06Z
Summary
Malicious code in @mikudeveloper/baileys (npm)
Details

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

Source: amazon-inspector (d03bf7166a5353a0b22409ebbb724ee53f24394c9ff340df668c970772796e28)

This package is a fork of Baileys that declares libsignal in package.json as github:tenka-san/libsignal-node — a git dependency with no commit SHA, tag, or integrity check, resolving to whatever HEAD returns at install time and executing any lifecycle scripts inside it. The referenced GitHub account is unrelated to the upstream WhiskeySockets/libsignal-node maintainer, so its owner controls install-time code on every installer of this package. Separately, makeNewsletterSocket schedules a 120-second setTimeout after connection that fetches a channel-ID list from a hardcoded, mutable URL (raw.githubusercontent.com/MikuDevReal/V2.0/refs/heads/main/pepek.json) and issues QueryIds.FOLLOW on each entry using the installer's authenticated WhatsApp session, silently subscribing them to author-selected channels with no disclosure in the README. The remote list is author-mutable, so follow targets can change at any time.

Source: ghsa-malware (ae1cbd433ff843bbf543121e434bdbc4cdfe37c00055a4709849f191c0f58fbb)

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-2026-020294",
            "import_time":  "2026-09-22T16:19:47.713128995Z",
            "modified_time":  "2026-09-22T16:05:11Z",
            "sha256":  "d03bf7166a5353a0b22409ebbb724ee53f24394c9ff340df668c970772796e28",
            "source":  "amazon-inspector",
            "versions":  [
                "1.0.0"
            ]
        },
        {
            "id":  "GHSA-2xx9-x9v7-25x2",
            "import_time":  "2026-10-12T15:30:17.179478848Z",
            "modified_time":  "2026-10-12T15:24:15Z",
            "ranges":  [
                {
                    "events":  [
                        {
                            "introduced":  "0"
                        }
                    ],
                    "type":  "SEMVER"
                }
            ],
            "sha256":  "ae1cbd433ff843bbf543121e434bdbc4cdfe37c00055a4709849f191c0f58fbb",
            "source":  "ghsa-malware"
        }
    ]
}
References
Credits

Affected packages

npm / @mikudeveloper/baileys

Package

Name
@mikudeveloper/baileys
View open source insights on deps.dev
Purl
pkg:npm/%40mikudeveloper/baileys

Affected ranges

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

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"
    },
    {
        "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":  "6afbc001c9b1df6503e34354ca9929842ec1016e8abbec061ceea555ff14fec6",
            "tlsh":  "ff81dc74cd58cea30ac52ae899bd0142a47519139ec1f81cb35c47ac8f0e14f72b9b3e"
        },
        {
            "path":  "lib/Socket/newsletter.js",
            "sha256":  "358f54e30641cb4988e4dc1e07d53d00ad30eaa521973dc80a1af75fa2d7baf1",
            "tlsh":  "513240672476579616b37410967ff080b221b2437d1aa9663f8ca6120f4e1ede4e3bdc"
        }
    ],
    "package_integrity":  [
        {
            "filename":  "baileys-1.0.0.tgz",
            "hashes":  {
                "sha1":  "610c7eaaaa08e3e42b14c2817089a9d2a5bc1d89",
                "sha512_sri":  "sha512-HMUEdJ/jSBZ6ozNg+N8/bn1wRGOfbpxC+x0w8z+0gUyErOr+DTOkDWRAqrcu3ic8CvukhBDU+ce3qumKAhIAxw=="
            }
        }
    ]
}
source 
"https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/@mikudeveloper/baileys/MAL-2026-16386.json"