Readest: Unscoped Tauri IPC download_file/upload_file allow arbitrary local file write and read from the webview

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-57567
StatePUBLISHED
AssignerGitHub_M
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-11-04 22:18:07 UTC
Updated2026-11-05 20:17:59 UTC
DescriptionReadest is a modern, feature-rich ebook reader designed for seamless cross-platform access and an intuitive reading experience. In affected desktop Tauri builds prior to 0.11.10, the apps/readest-app/src-tauri/src/transfer_file.rs commands download_file and upload_file accepted a webview-controlled file_path and passed it to File::create or File::open without checking the Tauri filesystem scope, rejecting absolute paths, or blocking parent-directory traversal. The commands were registered in the global invoke handler for the main, updater, and reader-* windows, so JavaScript executing in the privileged application origin could write attacker-controlled content to any path writable by the process or read and send any path readable by the process. Exploitation requires JavaScript execution in that privileged origin, such as through an application XSS or compromised renderer; whether book-embedded JavaScript can reach the parent origin was not established. The write primitive can overwrite trusted or startup files, while the read primitive can expose keys, tokens, and application secrets. This issue is fixed in version 0.11.10.

Risk And Classification

Primary CVSS: v3.1 8.6 HIGH from [email protected]

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

EPSS: 0.006630000 probability, percentile 0.518640000 (date 2026-11-05)

Problem Types: CWE-22 | CWE-22 CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')

VersionSourceTypeScoreSeverityVector
3.1[email protected]Secondary8.6HIGHCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H
3.1CNADECLARED8.6HIGHCVSS:3.1/AV:L/AC:L/PR:N/UI:R/S:C/C:H/I:H/A:H

CVSS v3.1 Breakdown

Attack Vector
Local
Attack Complexity
Low
Privileges Required
None
User Interaction
Required
Scope
Changed
Confidentiality
High
Integrity
High
Availability
High

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

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Readest Readest affected < 0.11.10 Not specified

References

ReferenceSourceLinkTags
github.com/readest/readest/pull/4639 [email protected] github.com
github.com/readest/readest/security/advisories/GHSA-55vr-pvq5-6fmg 134c704f-9b21-4f2e-91b3-4a467353bcc0 github.com
github.com/readest/readest/releases/tag/v0.11.10 [email protected] github.com
github.com/readest/readest/pull/4651 [email protected] github.com
github.com/readest/readest/commit/446c2c72de198de2dfcd63589f549ca517961d15 [email protected] github.com
github.com/readest/readest/commit/4025c4d7b52c8c174ec1d4c02c2a864cce249604 [email protected] github.com
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