MAL-2026-5515

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Import Source
https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/yelp-react-component-chaos/MAL-2026-5515.json
JSON Data
https://api.osv.dev/v1/vulns/MAL-2026-5515
Aliases
  • GHSA-3chg-w9g2-778v
Published
2026-06-10T15:49:03Z
Modified
2026-07-15T07:19:25Z
Summary
Malicious code in yelp-react-component-chaos (npm)
Details

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

Source: amazon-inspector (711cd262cc670c0e66cf2878b6fa22db21a2e420313a58aa029cbc619f2b27cc)

On npm install, preinstall.js collects hostname, username, cwd, network interfaces, and the names of environment variables matching /TOKEN|SECRET|PASSWORD|KEY|AUTH|NPM|AWS|GITHUB|YELP|DATABASE/i, then probes for the existence and sizes of ~/.npmrc, ~/.gitconfig, ~/.ssh/id_rsa, ~/.ssh/id_ed25519, ~/.aws/credentials, ~/.env, ~/.netrc, and ~/.docker/config.json. The collected payload is POSTed via curl to http://3w0e8s6jg6tkyv03vdesvscvlmrdf43t.oastify.com (a Burp Collaborator OAST domain) over plain HTTP. The payload self-identifies with attack: 'dependency-confusion-yelp' and the package name yelp-react-component-chaos impersonates Yelp's internal React tooling namespace, indicating a dependency-confusion squat against Yelp's private registry. Any developer or CI pipeline that resolves this name from public npm has their host fingerprinted and their installer-credential file inventory reported off-host, enabling targeted follow-on theft.

Source: ghsa-malware (5bea4f453020ab71f0751124ac35492ef8190a2a0e25796189869d1ba49915cc)

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 (888a90bd95ca140a3cc5946c0f1a7bf5b52f04ac2f7732722de7db72ec409801)

The OpenSSF Package Analysis project identified 'yelp-react-component-chaos' @ 8.14.5 (npm) as malicious.

It is considered malicious because:

  • The package communicates with a domain associated with malicious activity.

  • The package executes one or more commands associated with malicious behavior.

Database specific 
{
    "malicious-packages-origins": [
        {
            "import_time": "2026-06-10T16:43:59.438965768Z",
            "modified_time": "2026-06-10T15:49:03Z",
            "sha256": "888a90bd95ca140a3cc5946c0f1a7bf5b52f04ac2f7732722de7db72ec409801",
            "source": "ossf-package-analysis",
            "versions": [
                "8.14.5"
            ]
        },
        {
            "id": "IN-MAL-2026-005295",
            "import_time": "2026-06-10T19:23:48.80211564Z",
            "modified_time": "2026-06-10T18:42:07Z",
            "sha256": "711cd262cc670c0e66cf2878b6fa22db21a2e420313a58aa029cbc619f2b27cc",
            "source": "amazon-inspector",
            "versions": [
                "8.14.5"
            ]
        },
        {
            "id": "IN-MAL-2026-005296",
            "import_time": "2026-06-10T19:23:48.867114303Z",
            "modified_time": "2026-06-10T18:42:08Z",
            "sha256": "cf88717719d8d7f86a39bfb0ebfcb6fe2960c415e6dcc592c3777007812d1882",
            "source": "amazon-inspector",
            "versions": [
                "8.14.5"
            ]
        },
        {
            "id": "GHSA-3chg-w9g2-778v",
            "import_time": "2026-07-15T07:00:48.948508551Z",
            "modified_time": "2026-07-15T06:27:09Z",
            "ranges": [
                {
                    "events": [
                        {
                            "introduced": "0"
                        }
                    ],
                    "type": "SEMVER"
                }
            ],
            "sha256": "5bea4f453020ab71f0751124ac35492ef8190a2a0e25796189869d1ba49915cc",
            "source": "ghsa-malware"
        }
    ]
}
References
Credits

Affected packages

npm / yelp-react-component-chaos

Package

Name
yelp-react-component-chaos
View open source insights on deps.dev
Purl
pkg:npm/yelp-react-component-chaos

Affected ranges

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

Affected versions

8.*
8.14.5

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": [
        "3w0e8s6jg6tkyv03vdesvscvlmrdf43t.oastify.com"
    ],
    "evidence_files": [
        {
            "path": "preinstall.js",
            "sha256": "cd833edb605d41b532d0624688bcdf6b832c60599cebd4d389cc16ef44d37a18",
            "tlsh": "493167d202f0563424b3e6c1aa5b3033365af10b3e09f5d8bd6c16954fc69b455f1af9"
        }
    ],
    "package_integrity": [
        {
            "filename": "yelp-react-component-chaos-8.14.5.tgz",
            "hashes": {
                "sha1": "15a6573e585d7d3aa795e2e22e11f752cadacb5c",
                "sha512_sri": "sha512-2CPPlyS/506SxniPzvo3C1SWt9I+O+fvpmMyLtPuLwPDidrHM8FDyF04d95RWNQx4tMB6wlVXJ8yiYY9m1522g=="
            }
        }
    ]
}
source 
"https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/yelp-react-component-chaos/MAL-2026-5515.json"