CVE-2026-3089— Actual Sync Server 26.2.1 - Authenticated Path Traversal
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I. Basic Information for CVE-2026-3089
Vulnerability Information
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Vulnerability Title
Actual Sync Server 26.2.1 - Authenticated Path Traversal
Source: NVD (National Vulnerability Database)
Vulnerability Description
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.
Source: NVD (National Vulnerability Database)
CVSS Information
N/A
Source: NVD (National Vulnerability Database)
Vulnerability Type
对路径名的限制不恰当(路径遍历)
Source: NVD (National Vulnerability Database)
Vulnerability Title
actual 安全漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
actual是Actual开源的一个个人理财工具。 actual 26.3.0之前版本存在安全漏洞，该漏洞源于对用户控制的x-actual-file-id标头验证不当，可能导致目录遍历和任意文件写入。
Source: CNNVD (China National Vulnerability Database)
CVSS Information
N/A
Source: CNNVD (China National Vulnerability Database)
Vulnerability Type
N/A
Source: CNNVD (China National Vulnerability Database)
Affected Products
| Vendor | Product | Affected Versions | CPE | Subscribe |
|---|---|---|---|---|
| Actual | Actual Sync Server | 26.2.1 | - |
II. Public POCs for CVE-2026-3089
| # | POC Description | Source Link | Shenlong Link |
|---|
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- Actual Sync Server 26.2.1 - Authenticated Path Traversal | Fluid Attacksthird-party-advisory
- https://nvd.nist.gov/vuln/detail/CVE-2026-3089
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V. Comments for CVE-2026-3089
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