Pulpy: Incomplete filesystem sandbox in pulpy.fs bridge allows packaged web apps to read arbitrary user files

Pulpy is a lightweight, cross-platform desktop application packager for web apps. Prior to 0.1.1, Pulpy injects a pulpy.fs JavaScript API into every packaged web application, giving it access to the host filesystem. A validateFsPath() function is supposed to sandbox this access, but its blocklist is incomplete. Any web app packaged with Pulpy can read and write arbitrary files in the user's home directory — including ~/.ssh/id_rsa, ~/.aws/credentials, and ~/Library/Keychains/. This vulnerability is fixed in 0.1.1.

Problem type

Affected products

enesgkky

Pulpy

< 0.1.1 - AFFECTED

References

https://github.com/enesgkky/Pulpy/security/advisories/GHSA-h9q2-w73v-g7hf

https://github.com/enesgkky/Pulpy/security/advisories/GHSA-h9q2-w73v-g7hf

x_refsource_CONFIRM

JSON source

https://cveawg.mitre.org/api/cve/CVE-2026-44225

Click to expand

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    "dateUpdated": "2026-05-12T20:02:44.051Z",
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          "value": "Pulpy is a lightweight, cross-platform desktop application packager for web apps. Prior to 0.1.1, Pulpy injects a pulpy.fs JavaScript API into every packaged web application, giving it access to the host filesystem. A validateFsPath() function is supposed to sandbox this access, but its blocklist is incomplete. Any web app packaged with Pulpy can read and write arbitrary files in the user's home directory — including ~/.ssh/id_rsa, ~/.aws/credentials, and ~/Library/Keychains/. This vulnerability is fixed in 0.1.1."
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