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CVE-2026-49244— SFTPGo: Path confinement bypass in public browsable share partial ZIP download

Quick assessment

Affected
drakkan sftpgo
Exploitation
No confirmed in-the-wild exploitation; assess based on exposure
Recommended action
Check the vendor advisory and references for a fixed version. If immediate upgrade is impossible, restrict exposure and increase monitoring.

drakkan sftpgo是drakkan个人开发者的一款支持SFTP协议的文件传输服务器软件。 drakkan sftpgo 2.2.0版本至2.7.3之前版本存在路径遍历漏洞，该漏洞源于公共web客户端部分ZIP下载端点对客户端提供的文件条目使用原始字节前缀比较而非目录边界感知检查，可能导致未经身份验证的攻击者选择共享目录外的规范路径，将越界文件包含在生成的下载中，造成信息泄露。

CVSS 5.9 · Medium EPSS 0.45% · P37

Possible ATT&CK Techniques 1 AI

T1005 · Data from Local System

Affected Version Matrix 1

VendorProduct Version RangeStatus
drakkan sftpgo >= 2.2.0 < 2.7.2 affected
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I. Basic Information for CVE-2026-49244

Vulnerability Information
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Vulnerability Title
SFTPGo: Path confinement bypass in public browsable share partial ZIP download
Source: CVE Program / CVE List V5
Vulnerability Description
SFTPGo is an open source, event-driven file transfer solution. From 2.2.0 until 2.7.3, the public web-client partial ZIP download endpoint for a browsable share validates client-supplied files entries with a raw byte-prefix comparison rather than a directory-boundary-aware check. An unauthenticated requester who can reach a public share can select a canonical path outside the shared directory when the target path begins with the shared directory's name, such as a sibling path that shares the same prefix. The endpoint then includes the out-of-scope file in the generated download, disclosing its contents. This issue is fixed in version 2.7.3.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
对路径名的限制不恰当(路径遍历)
Source: CVE Program / CVE List V5
Vulnerability Title
drakkan sftpgo 路径遍历漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
drakkan sftpgo是drakkan个人开发者的一款支持SFTP协议的文件传输服务器软件。 drakkan sftpgo 2.2.0版本至2.7.3之前版本存在路径遍历漏洞，该漏洞源于公共web客户端部分ZIP下载端点对客户端提供的文件条目使用原始字节前缀比较而非目录边界感知检查，可能导致未经身份验证的攻击者选择共享目录外的规范路径，将越界文件包含在生成的下载中，造成信息泄露。
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
drakkan sftpgo >= 2.2.0 < 2.7.2 -

II. Public POCs for CVE-2026-49244

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III. Intelligence Information for CVE-2026-49244

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Patches & Fixes for CVE-2026-49244 (1)

Vendor Advisories for CVE-2026-49244 (1)

Vendor Pages for CVE-2026-49244 (1)

IV. Related Vulnerabilities

Same product: sftpgo
Same vendor: drakkan
Same weakness: CWE-22

V. Comments for CVE-2026-49244

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