MAL-2026-16332

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Import Source
https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/feed-widget-helper/MAL-2026-16332.json
JSON Data
https://api.osv.dev/v1/vulns/MAL-2026-16332
Aliases
  • GHSA-r52r-vpcc-38v2
Published
2026-09-21T03:30:57Z
Modified
2026-09-30T07:00:08Z
Summary
Malicious code in feed-widget-helper (npm)
Details

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

Source: amazon-inspector (e9c3f4f4751b0adffb78a311ee048162a853729a5dd1d0826593f394a4d663e2)

On load, index.js schedules a setTimeout (~2s) that fetches the current origin's /profile endpoint, parses the returned HTML, extracts a.flag-value element (falling back to the entire page body), and issues a POST to /addPost with the extracted content as JSON. The behavior fires unconditionally without user interaction, uses the embedding page's authenticated session to read private profile data, and then publishes that data through a state-changing endpoint on the same origin. The package name ("feed-widget-helper") and package.json are placeholders: description, author, repository, and keywords are all empty, and the shipped code has no relation to any feed-widget functionality. The shape is a same-origin CSRF/exfiltration payload rather than a helper library.

Source: ghsa-malware (e8b286173148884a6c5d368034a9bff960825f2427bfb089ab017405424f74bf)

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-2026-020231",
            "import_time":  "2026-09-21T03:46:38.157628355Z",
            "modified_time":  "2026-09-21T03:30:57Z",
            "sha256":  "b5a81a96715497c25b18687ba7b9b42e919c23e700ede8d9944d41d6052d7f83",
            "source":  "amazon-inspector",
            "versions":  [
                "1.0.0"
            ]
        },
        {
            "id":  "IN-MAL-2026-020519",
            "import_time":  "2026-09-24T15:18:50.121674032Z",
            "modified_time":  "2026-09-24T14:54:18Z",
            "sha256":  "3fc992a95937fa84e5732ec8317a3c787f20b2cde15f14ea13f46631aea0fbdc",
            "source":  "amazon-inspector",
            "versions":  [
                "1.0.8"
            ]
        },
        {
            "id":  "IN-MAL-2026-020520",
            "import_time":  "2026-09-24T15:18:50.242339467Z",
            "modified_time":  "2026-09-24T14:54:26Z",
            "sha256":  "e9c3f4f4751b0adffb78a311ee048162a853729a5dd1d0826593f394a4d663e2",
            "source":  "amazon-inspector",
            "versions":  [
                "1.0.6"
            ]
        },
        {
            "id":  "GHSA-r52r-vpcc-38v2",
            "import_time":  "2026-09-30T06:43:04.842608405Z",
            "modified_time":  "2026-09-30T05:51:33Z",
            "ranges":  [
                {
                    "events":  [
                        {
                            "introduced":  "0"
                        }
                    ],
                    "type":  "SEMVER"
                }
            ],
            "sha256":  "e8b286173148884a6c5d368034a9bff960825f2427bfb089ab017405424f74bf",
            "source":  "ghsa-malware"
        }
    ]
}
References
Credits

Affected packages

npm / feed-widget-helper

Package

Name
feed-widget-helper
View open source insights on deps.dev
Purl
pkg:npm/feed-widget-helper

Affected ranges

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

Affected versions

1.*
1.0.0
1.0.6
1.0.8

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"
    },
    {
        "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 
{
    "evidence_files":  [
        {
            "path":  "index.js",
            "sha256":  "1b985d71a7f326e55b032a7fa220472987bd770cfbfb2e907a19127887e1165e",
            "tlsh":  "cbb012ffa204883d18f8c4447321998cd698b1209c556906dcfd65f0a33220f3d00fb2"
        }
    ],
    "package_integrity":  [
        {
            "filename":  "feed-widget-helper-1.0.0.tgz",
            "hashes":  {
                "sha1":  "ff36ee16ab0f4bac3574f146ecfa81e8393f74b8",
                "sha512_sri":  "sha512-HDWGxlNa+Sf+lohD34tWUwuYzLw4mT2GLNejZhIyv2bNYxCTykSgM/GVK9r+3FnjJjhi/bgRx3bSjzF1+UU75Q=="
            }
        }
    ]
}
source 
"https://github.com/ossf/malicious-packages/blob/main/osv/malicious/npm/feed-widget-helper/MAL-2026-16332.json"