MAL-2026-3633

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Import Source
https://github.com/ossf/malicious-packages/blob/main/osv/malicious/rubygems/knot-rack-session-store/MAL-2026-3633.json
JSON Data
https://api.osv.dev/v1/vulns/MAL-2026-3633
Published
2026-05-13T03:09:00Z
Modified
2026-05-13T04:22:27.057878Z
Summary
Malicious code in knot-rack-session-store (RubyGems)
Details

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

Source: google-open-source-security (a4e4f74e90479d472a307d311d48214827e21cf93ecf9b0b62ff2cb72adb2c9e)

This package is a malicious packages part of the Go BufferZoneCorp and RubyGems knot-theory clusters. The packages in this cluster steal credentials, set up ssh access and tamper with build/workflow environmetn variables.

Database specific 
{
    "iocs": {
        "urls": [
            "https://webhook.site/49c21843-c27c-4a1b-b1f6-037c3998055f"
        ]
    },
    "malicious-packages-origins": [
        {
            "sha256": "a4e4f74e90479d472a307d311d48214827e21cf93ecf9b0b62ff2cb72adb2c9e",
            "import_time": "2026-05-13T03:53:19.895958Z",
            "modified_time": "2026-05-13T03:51:44Z",
            "ranges": [
                {
                    "type": "ECOSYSTEM",
                    "events": [
                        {
                            "introduced": "0"
                        }
                    ]
                }
            ],
            "versions": [
                "1.0.2"
            ],
            "source": "google-open-source-security"
        }
    ]
}
References

Affected packages

RubyGems / knot-rack-session-store

Package

Name
knot-rack-session-store
Purl
pkg:gem/knot-rack-session-store

Affected ranges

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

Affected versions

1.*
1.0.2

Database specific

source 
"https://github.com/ossf/malicious-packages/blob/main/osv/malicious/rubygems/knot-rack-session-store/MAL-2026-3633.json"