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CVE-2026-3089

Actual Sync Server 26.2.1 - Authenticated Path Traversal PUBLISHED

Description (CNA)

Actual Sync Server allows authenticated users to upload files through POST /sync/upload-user-file. In versions prior to 26.3.0, improper validation of the user-controlled x-actual-file-id header means that traversal segments (../) can escape the intended directory and write files outside userFiles.This issue affects prior versions of Actual Sync Server 26.3.0.

Affected (CNA)

Vendor / productVersions
Actual / Actual Sync Serveraffected 26.2.1

CWE

CWE-22

References

ADP enrichment

CISA-ADP

No English description supplied.