MAL-2026-18763

See a problem?
Import Source
https://github.com/ossf/malicious-packages/blob/main/osv/malicious/rubygems/agentic-call-control/MAL-2026-18763.json
JSON Data
https://api.osv.dev/v1/vulns/MAL-2026-18763
Published
2026-11-08T09:39:55Z
Modified
2026-11-08T10:15:03Z
Summary
Malicious code in agentic-call-control (RubyGems)
Details

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

Source: amazon-inspector (6604e2b2afca5be9f394786598898c0d718100ef3cb3595590fb74949b3eb9b5)

The gem's native extension script executes during gem install and harvests installer-side data without consent. It collects host identifiers (current working directory, home directory, hostname, login name) and reads the contents of /etc/resolv.conf, /etc/passwd, and /etc/hosts, serializes them as JSON, and POSTs the payload over TLS to the hardcoded host k6rqb5d1inuytrro2u6arv87vy1vplda.oastify.com on port 443 using TCPSocket/OpenSSL. A DNS lookup to the same subdomain is also issued as an out-of-band beacon. The destination is a Burp Collaborator subdomain — attacker-controlled out-of-band interaction infrastructure unrelated to any declared publisher or build dependency. There is no native source tree or build logic that would require this network activity; the extension script's sole effect on install is reconnaissance exfiltration.

Database specific 
{
    "malicious-packages-origins": [
        {
            "id": "IN-MAL-2026-022569",
            "import_time": "2026-11-08T10:11:09.319492473Z",
            "modified_time": "2026-11-08T09:39:55Z",
            "sha256": "6604e2b2afca5be9f394786598898c0d718100ef3cb3595590fb74949b3eb9b5",
            "source": "amazon-inspector",
            "versions": [
                "1.1.8"
            ]
        }
    ]
}
References
Credits

Affected packages

RubyGems / agentic-call-control

Package

Name
agentic-call-control
Purl
pkg:gem/agentic-call-control

Affected ranges

Affected versions

1.*
1.1.8

Database specific

cwes 
[
    {
        "cweId": "CWE-506",
        "description": "The product contains code that appears to be malicious in nature.",
        "name": "Embedded Malicious Code"
    }
]
indicators 
{
    "evidence_files": [
        {
            "path": "ext/mkrf_conf.rb",
            "sha256": "d440f744cf657b71a4705c14f00f9cffa1b7051e9177a1f62c27538eabdab7fa",
            "tlsh": "dd11ef895395be60ab9bc5bfe60c20415493dd4ac50968b07a9e08a08f6dbac63315f6"
        }
    ],
    "package_integrity": [
        {
            "filename": "agentic-call-control-1.1.8.gem",
            "hashes": {
                "sha256": "8e7ed9a4c6b543ff1dc6898f580969da78b2790ec73762f78c1c6a7a5875b1ff"
            }
        }
    ]
}
source 
"https://github.com/ossf/malicious-packages/blob/main/osv/malicious/rubygems/agentic-call-control/MAL-2026-18763.json"