MAL-2026-2897

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Import Source
https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/chai-beta/MAL-2026-2897.json
JSON Data
https://api.osv.dev/v1/vulns/MAL-2026-2897
Aliases
  • GHSA-c6w2-3qw2-g5fm
Published
2026-04-15T22:05:03Z
Modified
2026-09-01T11:31:28Z
Summary
Malicious code in chai-beta (npm)
Details

chai-beta is a malicious npm package that when imported downloads a C2 dropper from https://jsonkeeper[.]com/b/XRGF3 and executes it (similar to malware in to chai-await-test).

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

Source: amazon-inspector (b57727c6a080ac8eccf4106639fc8fceab20fd4fb96142c8a8cb9b68422d4867)

The package chai-beta was found to contain malicious code.

Database specific 
{
    "iocs": {
        "urls": [
            "https://jsonkeeper.com/b/XRGF3"
        ]
    },
    "malicious-packages-origins": [
        {
            "import_time": "2026-04-23T20:49:04.575344839Z",
            "modified_time": "2026-04-23T20:43:56Z",
            "ranges": [
                {
                    "events": [
                        {
                            "introduced": "0"
                        }
                    ],
                    "type": "SEMVER"
                }
            ],
            "sha256": "b57727c6a080ac8eccf4106639fc8fceab20fd4fb96142c8a8cb9b68422d4867",
            "source": "amazon-inspector"
        },
        {
            "id": "RLMA-2026-05004",
            "import_time": "2026-07-09T09:16:23.319457296Z",
            "modified_time": "2026-07-07T12:43:37Z",
            "sha256": "3eb41b2c6b5a301a28377d83c35161308b92697cce0171d2a780702899796fe8",
            "source": "reversing-labs",
            "versions": [
                "1.1.9"
            ]
        },
        {
            "id": "RLUA-2026-06134",
            "import_time": "2026-09-01T11:17:59.789780216Z",
            "modified_time": "2026-08-24T16:43:45Z",
            "sha256": "d397c0c1cf7127cd166f25afdebdfac6261ebc36e5fa055a1350c000acec3a73",
            "source": "reversing-labs"
        }
    ]
}
References
Credits

Affected packages

npm / chai-beta

Package

Name
chai-beta
View open source insights on deps.dev
Purl
pkg:npm/chai-beta

Affected ranges

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

Affected versions

1.*
1.1.9

Database specific

source 
"https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/chai-beta/MAL-2026-2897.json"