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Tool Directory

CVE-2026-44225

CriticalPublished

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

Published: May 12, 2026
Updated: May 14, 2026
Assigning CNA: GitHub_M
Evidence observed: Jul 6, 2026

Primary CVSS

9.3/ 10Critical

nvd · CVSS 3.1

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:N

EPSS probability estimate

1.3%

Low · next 30 days

Percentile: 69.8%
Model date: Sep 21, 2026

EPSS is a statistical estimate, not a certainty or a measure of impact. Combine it with CVSS, KEV status, exposure and your environment.

Summary

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.

Sources

Pulpy 0.1.1-Beta - Filesystem Sandbox BypassExploit
Onur BILICI · multiple · Jul 6, 2026

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