CVE-2026-30915— SFTPGo improperly sanitizes placeholders in group home directories/key prefixes
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.
SFTPGo是意大利Nicola Murino个人开发者的一个功能齐全且高度可配置的 SFTP 服务器。 SFTPGo 2.7.1之前版本存在路径遍历漏洞，该漏洞源于动态组路径输入验证不当，可能导致路径解析到父目录。
Possible ATT&CK Techniques 3 AI
T1055 · Process Injection T1083 · File and Directory Discovery T1059 · Command and Scripting Interpreter
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I. Basic Information for CVE-2026-30915
Vulnerability Information
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Vulnerability Title
SFTPGo improperly sanitizes placeholders in group home directories/key prefixes
Source: CVE Program / CVE List V5
Vulnerability Description
SFTPGo is an open source, event-driven file transfer solution. SFTPGo versions before v2.7.1 contain an input validation issue in the handling of dynamic group paths, for example, home directories or key prefixes. When a group is configured with a dynamic home directory or key prefix using placeholders like %username%, the value replacing the placeholder is not strictly sanitized against relative path components. Consequently, if a user is created with a specially crafted username the resulting path may resolve to a parent directory instead of the intended sub-directory. This issue is fixed in version v2.7.1
Source: CVE Program / CVE List V5
CVSS Information
CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:L/VI:L/VA:N/SC:N/SI:N/SA: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
SFTPGo 路径遍历漏洞
Source: CNNVD (China National Vulnerability Database)
Vulnerability Description
SFTPGo是意大利Nicola Murino个人开发者的一个功能齐全且高度可配置的 SFTP 服务器。 SFTPGo 2.7.1之前版本存在路径遍历漏洞，该漏洞源于动态组路径输入验证不当，可能导致路径解析到父目录。
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
II. Public POCs for CVE-2026-30915
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Vendor Advisories for CVE-2026-30915 (1)
IV. Related Vulnerabilities
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V. Comments for CVE-2026-30915
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