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CVE-2026-10031— SFTPGo 2.7.4 Permission Bypass via Symbolic Link Creation

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.

Nicola Murino SFTPGo是意大利Nicola Murino个人开发者开源的一个功能齐全且高度可配置的 SFTP 服务器。 Nicola Murino SFTPGo 2.7.4之前版本存在授权问题漏洞，该漏洞源于权限验证不当，允许已认证用户在允许的目录中创建符号链接，指向禁止下载、上传或覆盖权限的目录中的文件，从而绕过目录访问控制。

CVSS 5.4 · Medium EPSS 0.19% · P8

Affected Version Matrix 1

VendorProduct Version RangeStatus
drakkan SFTPGo < 2.7.4 affected
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I. Basic Information for CVE-2026-10031

Vulnerability Information
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Vulnerability Title
SFTPGo 2.7.4 Permission Bypass via Symbolic Link Creation
Source: CVE Program / CVE List V5
Vulnerability Description
SFTPGo prior to 2.7.4 contains a permission bypass vulnerability that allows authenticated users to circumvent per-directory access controls by creating symbolic links in a permitted directory that point to files in directories where download, upload, or overwrite permissions are denied. Attackers can exploit the create_symlinks permission combined with read and write access in one directory to read or modify files in restricted directories, as operations are authorized against the link's directory permissions rather than the dereferenced target's directory permissions.
Source: CVE Program / CVE List V5
CVSS Information
CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:L/I:L/A:N
Source: CVE Program / CVE List V5
Vulnerability Type
授权机制不正确
Source: CVE Program / CVE List V5
Vulnerability Title
Nicola Murino SFTPGo 授权问题漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
Nicola Murino SFTPGo是意大利Nicola Murino个人开发者开源的一个功能齐全且高度可配置的 SFTP 服务器。 Nicola Murino SFTPGo 2.7.4之前版本存在授权问题漏洞，该漏洞源于权限验证不当，允许已认证用户在允许的目录中创建符号链接，指向禁止下载、上传或覆盖权限的目录中的文件，从而绕过目录访问控制。
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 0 ~ 2.7.4 -

II. Public POCs for CVE-2026-10031

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III. Intelligence Information for CVE-2026-10031

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Vendor Advisories for CVE-2026-10031 (2)

Vendor Pages for CVE-2026-10031 (1)

Other References for CVE-2026-10031 (1)

IV. Related Vulnerabilities

Same product: SFTPGo
Same vendor: drakkan
Same weakness: CWE-863

V. Comments for CVE-2026-10031

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