MAL-2026-6509

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Import Source
https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/@merceas/anchor/MAL-2026-6509.json
JSON Data
https://api.osv.dev/v1/vulns/MAL-2026-6509
Published
2026-06-26T05:51:43Z
Modified
2026-06-26T06:46:30.021481459Z
Summary
Malicious code in @merceas/anchor (npm)
Details

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

Source: amazon-inspector (86a51319de26245ad91c68a6a6d0713454112443e55f466711e79eb1a23a45b8)

Package is published as @merceas/anchor but its README, homepage (https://github.com/coral-xyz/anchor#readme), repository, and source are a verbatim copy of @coral-xyz/anchor — a typosquat/impersonation of the legitimate Solana Anchor SDK. The package.json overrides the standard cross-fetch dependency with an npm alias to a fork under the same scope: "cross-fetch": "npm:@merceas/cross-fetch@3.1.9". Installing this package silently pulls @merceas/cross-fetch into the dependency tree, routing every HTTP call made through the SDK (including dist/cjs/utils/registry.js's https://api.apr.dev/api/v0/program/<id>/latest?limit=<n> call, and any fetches consumers make via the SDK's transport) through code controlled by the same actor that published this typosquat. The cross-fetch substitution is the attack mechanism: the malicious payload is in the transitive package the installer is forced to pull, not in this tarball.

Database specific 
{
    "malicious-packages-origins": [
        {
            "import_time": "2026-06-26T06:28:53.15060173Z",
            "sha256": "86a51319de26245ad91c68a6a6d0713454112443e55f466711e79eb1a23a45b8",
            "modified_time": "2026-06-26T05:51:46Z",
            "source": "amazon-inspector",
            "id": "IN-MAL-2026-007599",
            "versions": [
                "0.32.1"
            ]
        },
        {
            "import_time": "2026-06-26T06:28:53.06219528Z",
            "sha256": "a134a4286f35463d5ea5dec990bba508dfae1014c9ca7c6b8a674b5204150465",
            "modified_time": "2026-06-26T05:51:43Z",
            "source": "amazon-inspector",
            "id": "IN-MAL-2026-007597",
            "versions": [
                "0.32.3"
            ]
        }
    ]
}
References
Credits

Affected packages

npm / @merceas/anchor

Package

Name
@merceas/anchor
View open source insights on deps.dev
Purl
pkg:npm/%40merceas%2Fanchor

Affected ranges

Affected versions

0.*
0.32.1
0.32.3

Database specific

source 
"https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/@merceas/anchor/MAL-2026-6509.json"
indicators 
{
    "evidence_files": [
        {
            "sha256": "18bfa1ec76af587579ddf1358d9ef82c11d9be23c2b8ade610d4265306f87336",
            "path": "package.json",
            "tlsh": "f951df21cd2cdc630ac016d8e83a0a62a13999534d94fc4d73a69b3d0f4d29f327eb2d"
        },
        {
            "sha256": "f7c5df166b0a8d334b050366fd5f7c741571ccab265a7d1f66f39a7adc0fde30",
            "path": "dist/cjs/utils/registry.js",
            "tlsh": "2a71ba243af762e14116309dc63f8a05e66cde23221cd4257e4c81addf75a24b67ef91"
        }
    ],
    "package_integrity": [
        {
            "filename": "anchor-0.32.1.tgz",
            "hashes": {
                "sha1": "33fa35cb493a13d84adef8f571467222256094bb",
                "sha512_sri": "sha512-7jNYb9WmKOTBqhgD51Hq0NZvHXOzZx5d1LhlIJzJRQW+pnnNxUIUHTXvAKd0IGhNCagkDN50LEIE01PpryN5hQ=="
            }
        }
    ]
}
cwes 
[
    {
        "name": "Embedded Malicious Code",
        "cweId": "CWE-506",
        "description": "The product contains code that appears to be malicious in nature."
    },
    {
        "name": "Embedded Malicious Code",
        "description": "The product contains code that appears to be malicious in nature.",
        "cweId": "CWE-506"
    }
]