MAL-2026-15499

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Import Source
https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/calcite-web/MAL-2026-15499.json
JSON Data
https://api.osv.dev/v1/vulns/MAL-2026-15499
Aliases
  • GHSA-fhxc-p24q-34ch
Published
2026-08-28T23:13:35Z
Modified
2026-08-29T18:45:16.006078217Z
Summary
Malicious code in calcite-web (npm)
Details

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

Source: amazon-inspector (91223994e8bb4e46e1b3ca5eea1714a25fedbb828090590110f8c23353c6ec17)

package.json at line 11 declares the package's own name as a dependency whose source is the bare URL https://repo.securityctrl.com/calcite-web instead of a registry version range. On npm install, npm fetches whatever tarball that URL returns and installs it with no version pin and no integrity check, executing any lifecycle scripts inside the fetched artifact. The shipped index.js is an inert stub, so the manifest itself is the entire install-time payload, and whoever controls repo.securityctrl.com controls code that runs on every installer. The dependency key equals the package's own name (dependency-confusion shape), and the implausibly high version (45.0.0) is consistent with an override attempting to win resolution against an internal package of the same name.

Source: ghsa-malware (4690774d9a334be9f9daa68548e9d07a93b9c5c36f9a61dcd7f131f7a64db447)

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": [
        {
            "id": "IN-MAL-2026-019082",
            "modified_time": "2026-08-28T23:13:35Z",
            "import_time": "2026-08-28T23:14:37.011709404Z",
            "source": "amazon-inspector",
            "sha256": "91223994e8bb4e46e1b3ca5eea1714a25fedbb828090590110f8c23353c6ec17",
            "versions": [
                "45.0.0"
            ]
        },
        {
            "id": "GHSA-fhxc-p24q-34ch",
            "ranges": [
                {
                    "type": "SEMVER",
                    "events": [
                        {
                            "introduced": "0"
                        }
                    ]
                }
            ],
            "modified_time": "2026-08-29T18:13:37Z",
            "import_time": "2026-08-29T18:26:29.960714164Z",
            "source": "ghsa-malware",
            "sha256": "4690774d9a334be9f9daa68548e9d07a93b9c5c36f9a61dcd7f131f7a64db447"
        }
    ]
}
References
Credits

Affected packages

npm / calcite-web

Package

Name
calcite-web
View open source insights on deps.dev
Purl
pkg:npm/calcite-web

Affected ranges

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

Affected versions

45.*
45.0.0

Database specific

cwes 
[
    {
        "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",
        "cweId": "CWE-506"
    }
]
indicators 
{
    "package_integrity": [
        {
            "filename": "calcite-web-45.0.0.tgz",
            "hashes": {
                "sha512_sri": "sha512-2qGCM1PqwbBCkpW7ppKUynHpmmLZWQlDWP3OZHwnX3CBrLVr0YTYzc7Q2Lrb0qGW95gORKe+1xXFib5B7lktWA==",
                "sha1": "0fc47e4f4e5adc6bfaa9d11a17f925c22bc9a520"
            }
        }
    ],
    "evidence_files": [
        {
            "path": "package.json",
            "tlsh": "59e0c2348a16937305ca01922c39c4e773114f5f81447c0d92cb4418c15e5b368fe35c",
            "sha256": "4ecd12d8f4128c26765f57fd9bbc45c1a763c9d3995c13ee77947c8a94802e44"
        }
    ]
}
source 
"https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/calcite-web/MAL-2026-15499.json"