MAL-2026-18285

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Import Source
https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/@postex/common/MAL-2026-18285.json
JSON Data
https://api.osv.dev/v1/vulns/MAL-2026-18285
Aliases
  • GHSA-fq53-vhhm-rqf7
Published
2026-10-25T15:05:26Z
Modified
2026-11-10T03:30:03Z
Summary
Malicious code in @postex/common (npm)
Details

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

Source: amazon-inspector (2fb98ad3575267cc8fbf617fe6a17000ed10df97d39710f4b7aaddf7225598d7)

@postex/common@99.9.1 ships an inert index.js (module.exports = {}) and declares a single dependency ltidisafe whose value is a bare HTTPS tarball URL (https://ltidi.storage.googleapis.com/depenconf/ltidisafe-3.9.5.tgz) rather than a registry version range. On npm install, npm fetches whatever bytes that URL returns, installs the resulting package, and executes any lifecycle scripts it contains, with no registry-mediated integrity, signature, or version pinning. The host (a user-controlled Google Cloud Storage bucket) is unrelated to any npm scope or published repository for this package, and the content served there can change at any time without any change to this manifest. The implausibly high version (99.9.1) combined with a hollow stub and an off-registry source is consistent with a dependency-confusion / smuggling lure whose only install-time effect is resolving to attacker-controlled code.

Source: ghsa-malware (fc23936b2240b9ef6d55f1fb4101f06b61ac33b1f1e8687dc26e6a6f6b9c91d4)

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-2026-021691",
            "import_time": "2026-10-25T15:15:14.193719346Z",
            "modified_time": "2026-10-25T15:05:26Z",
            "sha256": "2fb98ad3575267cc8fbf617fe6a17000ed10df97d39710f4b7aaddf7225598d7",
            "source": "amazon-inspector",
            "versions": [
                "99.9.1"
            ]
        },
        {
            "id": "GHSA-fq53-vhhm-rqf7",
            "import_time": "2026-11-10T03:20:03.593333692Z",
            "modified_time": "2026-11-10T03:15:35Z",
            "ranges": [
                {
                    "events": [
                        {
                            "introduced": "0"
                        }
                    ],
                    "type": "SEMVER"
                }
            ],
            "sha256": "fc23936b2240b9ef6d55f1fb4101f06b61ac33b1f1e8687dc26e6a6f6b9c91d4",
            "source": "ghsa-malware"
        }
    ]
}
References
Credits

Affected packages

npm / @postex/common

Package

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

Affected ranges

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

Affected versions

99.*
99.9.1

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": "10c90491a15a8bf18644e73c38f6a02686b7aa2b179f4de591320198cbb8b7d8",
            "tlsh": "69e0c2304a65a6334ec911b2882a655bf3718f5f1808bc0c5adb142c419da7328fd35c"
        }
    ],
    "package_integrity": [
        {
            "filename": "common-99.9.1.tgz",
            "hashes": {
                "sha1": "b59ddb1bc3f00bc62074dcff71044153974a3bdc",
                "sha512_sri": "sha512-+7BfRhap29Kk5FXT+K3RtBcyMLNBcaKj9I3PjD75EpumHiQJtgODVK2lo580a0tj4cWIKIo8JTgghKK19XvluA=="
            }
        }
    ]
}
source 
"https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/@postex/common/MAL-2026-18285.json"