MAL-2026-5742

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Import Source
https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/axl-ui/MAL-2026-5742.json
JSON Data
https://api.osv.dev/v1/vulns/MAL-2026-5742
Aliases
  • GHSA-f4w9-3fvx-q5xw
Published
2026-06-13T20:11:39Z
Modified
2026-06-25T05:46:21Z
Summary
Malicious code in axl-ui (npm)
Details

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

Source: amazon-inspector (6fbc071f0ee6323c87fa6be049a9b151217f7146605ef89b4494f7ef07e7d534)

axl-ui@9.9.99 is a dependency-confusion squat targeting an internal package name. package.json declares a postinstall hook (node beacon.js) that fires automatically on npm install. beacon.js reads os.hostname() and transmits it to a hardcoded Burp Collaborator out-of-band host (tspeuj1fodn3cj8v30uck2fs4jaby1mq.oastify.com) via two channels: a DNS lookup of <nonce>.host.<collaborator> and an HTTPS POST with JSON body {pkg, nonce, host}. The version number 9.9.99 and the self-described "internal placeholder" description are the canonical dependency-confusion shape: any private build that resolves axl-ui from public npm will execute the beacon and leak the host identity to the attacker. Even if framed as a research proof-of-concept, the harm to installers is real — installer-side data leaves the build machine to an attacker-controlled endpoint without consent.

Source: ghsa-malware (1fdd3e217438d2f477bb133573c4a124e78868e32c72bab59dbc8ba0cff789c6)

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.

Source: ossf-package-analysis (aca109fdc13102e60179b8d6c63a996da233e4910b6260da8838df727f33a64f)

The OpenSSF Package Analysis project identified 'axl-ui' @ 9.9.99 (npm) as malicious.

It is considered malicious because:

  • The package communicates with a domain associated with malicious activity.
Database specific 
{
    "malicious-packages-origins": [
        {
            "id": "IN-MAL-2026-006367",
            "import_time": "2026-06-13T20:33:18.334645691Z",
            "modified_time": "2026-06-13T20:11:39Z",
            "sha256": "6fbc071f0ee6323c87fa6be049a9b151217f7146605ef89b4494f7ef07e7d534",
            "source": "amazon-inspector",
            "versions": [
                "9.9.99"
            ]
        },
        {
            "id": "IN-MAL-2026-006368",
            "import_time": "2026-06-13T20:33:18.398820066Z",
            "modified_time": "2026-06-13T20:11:39Z",
            "sha256": "d1e69c230413d89069c5925f28b54066565427ccea31208d53820f2f8be0dc33",
            "source": "amazon-inspector",
            "versions": [
                "9.9.99"
            ]
        },
        {
            "import_time": "2026-06-13T20:33:16.986865896Z",
            "modified_time": "2026-06-13T20:13:39Z",
            "sha256": "aca109fdc13102e60179b8d6c63a996da233e4910b6260da8838df727f33a64f",
            "source": "ossf-package-analysis",
            "versions": [
                "9.9.99"
            ]
        },
        {
            "id": "GHSA-f4w9-3fvx-q5xw",
            "import_time": "2026-06-25T05:39:10.608614085Z",
            "modified_time": "2026-06-25T03:41:41Z",
            "ranges": [
                {
                    "events": [
                        {
                            "introduced": "0"
                        }
                    ],
                    "type": "SEMVER"
                }
            ],
            "sha256": "1fdd3e217438d2f477bb133573c4a124e78868e32c72bab59dbc8ba0cff789c6",
            "source": "ghsa-malware"
        }
    ]
}
References
Credits

Affected packages

npm / axl-ui

Package

Name
axl-ui
View open source insights on deps.dev
Purl
pkg:npm/axl-ui

Affected ranges

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

Affected versions

9.*
9.9.99

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 
{
    "domains": [
        "4f02330e.scan-2bb16be6a3fc.tspeuj1fodn3cj8v30uck2fs4jaby1mq.oastify.com",
        "tspeuj1fodn3cj8v30uck2fs4jaby1mq.oastify.com"
    ],
    "evidence_files": [
        {
            "path": "beacon.js",
            "sha256": "9ebb23782d5e21ad79534b040abd8426aeff2e4b0fa5938c0efb906b20cf8f88",
            "tlsh": "bb21baff94a9a1413fa675c4d26f32751113e2618285cfe0f4afd2692f9853942a24fc"
        },
        {
            "path": "package.json",
            "sha256": "791fc05e5c866262d82810d13165b5087a2cacb8a25543e94b654c2621a3553f",
            "tlsh": "4cd023908d119b7330c44b6d4c72d50e35b14d5f112cb4084f83110032ddbf344ba24f"
        }
    ],
    "package_integrity": [
        {
            "filename": "axl-ui-9.9.99.tgz",
            "hashes": {
                "sha1": "e151ea59792af6b980186905e75d80797fde9c16",
                "sha512_sri": "sha512-Tr/wK2YK8VCXrogIjyPfrJn68SR7G3YTFmGGXFbE/pV4hrZ2+e81MHac9NYbXY4y9LvUm5ruqHHGyvMNcpo1QQ=="
            }
        }
    ]
}
source 
"https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/axl-ui/MAL-2026-5742.json"