CVE-2026-30914: Github.com/drakkan/sftpgo/v2 Path Traversal Vulnerability

MODERATE
Advisory Identifier: GHSA-x8qh-7475-c5mp
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CWE-22
Published
Advisory Summary

CVE-2026-30914 is a MODERATE path traversal vulnerability (CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')) affecting Github.com/drakkan/sftpgo/v2 libraries in the Go ecosystem. The issue involves sftpgo vulnerable to path traversal and permission bypass via path normalization discrepancy. Remediation is available by upgrading affected packages to version 2.7.1.

CVE-2026-30914 at a Glance

CVE Identifier CVE-2026-30914
GHSA Identifier GHSA-x8qh-7475-c5mp
Severity MODERATE
CVSS v3.1 Base Score N/A
CWE Classification CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
Affected Product Github.com/drakkan/sftpgo/v2
Package Ecosystem Go
Published Date
Last Updated

How to Fix CVE-2026-30914

To remediate this vulnerability, upgrade all affected Github.com/drakkan/sftpgo/v2 dependencies to a patched release. Both direct and transitive dependencies should be checked, as frameworks or security libraries may pull in vulnerable versions transitively.

github.com/drakkan/sftpgo/v2 fixed: 2.7.1 
Upgrade github.com/drakkan/sftpgo/v2 to 2.7.1
github.com/drakkan/sftpgo fixed: Latest secure release 
Upgrade github.com/drakkan/sftpgo to Latest secure release
Verify Direct and Transitive Dependencies

Run the following command in your project directory to verify that all resolved dependencies use the patched release: 

inspect dependencies for github.com/drakkan/sftpgo/v2

How to Check if You Are Affected

To determine whether your application is affected by CVE-2026-30914, inspect your project dependencies for Github.com/drakkan/sftpgo/v2:

inspect dependencies for github.com/drakkan/sftpgo/v2

Analyze the terminal output to locate any version of Github.com/drakkan/sftpgo/v2 in your dependency tree. If any resolved version matches the vulnerable ranges listed in the table below (for example, versions earlier than 2.7.1), your application is affected.

Note: Verify declared build manifests and deployed runtime container environments.

Technical Details

Vulnerability Mechanism & Technical Analysis

This vulnerability is classified under CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal'), where the product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory. In Github.com/drakkan/sftpgo/v2, software state validation or input boundaries are circumvented during processing. Review the official source advisory statement below for specific affected components, classes, and reproduction details.

Source Advisory Statement

### Impact In SFTPGo versions prior to 2.7.1, a path normalization discrepancy between the protocol handlers and the internal Virtual Filesystem routing can lead to an authorization bypass. An authenticated attacker can craft specific file paths to bypass folder-level permissions or escape the boundaries of a configured Virtual Folder. ### Patches This issue has been addressed in SFTPGo version 2.7.1. The fix introduces strict edge-level path normalization, ensuring that all protocol inputs are fully sanitized and resolved to canonical POSIX paths before any routing or permission evaluations occur.

CVE-2026-30914 Affected Github.com/drakkan/sftpgo/v2 Versions

2 component(s)
Fixed Versions:
2.7.1
Product / Package Ecosystem Affected Versions Fixed Version
github.com/drakkan/sftpgo/v2
golang/github.com/drakkan/sftpgo/v2
Go
< 2.7.1
2.7.1
github.com/drakkan/sftpgo
golang/github.com/drakkan/sftpgo
Go
≤ 1.2.2

References

GitHub Advisory / Wiki ADVISORY
https://github.com/drakkan/sftpgo/security/advisories/GHSA-x8qh-7475-c5mp
NVD — CVE-2026-30914 NVD
https://nvd.nist.gov/vuln/detail/CVE-2026-30914
Security Fix Commit FIX COMMIT
https://github.com/drakkan/sftpgo/commit/2f092d128917e2c059520a2ce3e22c3b5ea7ffd6
Github.com/drakkan/sftpgo/v2 Source Repository REPOSITORY
https://github.com/drakkan/sftpgo
pkg.go.dev/vuln/go-2026-4699 WEB
https://pkg.go.dev/vuln/GO-2026-4699

Frequently Asked Questions

What is CVE-2026-30914?
CVE-2026-30914 is a security vulnerability in Github.com/drakkan/sftpgo/v2 involving SFTPGo Vulnerable to Path Traversal and Permission Bypass via Path Normalization Discrepancy under CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal').
Which Github.com/drakkan/sftpgo/v2 versions are affected?
Affected versions include releases prior to 2.7.1 across affected packages: github.com/drakkan/sftpgo/v2, github.com/drakkan/sftpgo.
What version fixes CVE-2026-30914?
Upgrading to 2.7.1 (or the latest patched release for your respective branch) resolves the vulnerability.
Is github.com/drakkan/sftpgo/v2 affected?
Yes, github.com/drakkan/sftpgo/v2 is affected in releases prior to 2.7.1. Upgrade your dependency to 2.7.1 or later.
Is github.com/drakkan/sftpgo affected?
Yes, github.com/drakkan/sftpgo is affected in releases prior to Latest secure release. Upgrade your dependency to Latest secure release or later.
What CWE is associated with CVE-2026-30914?
CVE-2026-30914 is classified under CWE-22: Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal') (The product uses external input to construct a pathname that is intended to identify a file or directory that is located underneath a restricted parent directory, but the product does not properly neutralize special elements within the pathname that can cause the pathname to resolve to a location that is outside of the restricted directory.).
How can I check Go dependencies for CVE-2026-30914?
Run the dependency tree command: 'inspect dependencies for github.com/drakkan/sftpgo/v2'. This command lists direct and transitive dependencies in your build configuration so you can verify if a vulnerable version is resolved.
Machine-readable OSV JSON OSV v1.5 Schema
Normalized schema output
View Raw JSON 
{
  "schema_version" : "1.4.0",
  "id" : "GHSA-x8qh-7475-c5mp",
  "modified" : "2026-03-24T20:57:44Z",
  "published" : "2026-03-13T18:55:52Z",
  "aliases" : [ "CVE-2026-30914" ],
  "summary" : "SFTPGo Vulnerable to Path Traversal and Permission Bypass via Path Normalization Discrepancy",
  "details" : "### Impact\n\nIn SFTPGo versions prior to 2.7.1, a path normalization discrepancy between the protocol handlers and the internal Virtual Filesystem routing can lead to an authorization bypass. An authenticated attacker can craft specific file paths to bypass folder-level permissions or escape the boundaries of a configured Virtual Folder.\n\n\n### Patches\n\nThis issue has been addressed in SFTPGo version 2.7.1. The fix introduces strict edge-level path normalization, ensuring that all protocol inputs are fully sanitized and resolved to canonical POSIX paths before any routing or permission evaluations occur.",
  "severity" : [ {
    "type" : "CVSS_V4",
    "score" : "CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N"
  } ],
  "affected" : [ {
    "package" : {
      "ecosystem" : "Go",
      "name" : "github.com/drakkan/sftpgo/v2"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "fixed" : "2.7.1"
      } ]
    } ],
    "database_specific" : {
      "last_known_affected_version_range" : "<= 2.7.0"
    }
  }, {
    "package" : {
      "ecosystem" : "Go",
      "name" : "github.com/drakkan/sftpgo"
    },
    "ranges" : [ {
      "type" : "ECOSYSTEM",
      "events" : [ {
        "introduced" : "0"
      }, {
        "last_affected" : "1.2.2"
      } ]
    } ]
  } ],
  "references" : [ {
    "type" : "WEB",
    "url" : "https://github.com/drakkan/sftpgo/security/advisories/GHSA-x8qh-7475-c5mp"
  }, {
    "type" : "ADVISORY",
    "url" : "https://nvd.nist.gov/vuln/detail/CVE-2026-30914"
  }, {
    "type" : "WEB",
    "url" : "https://github.com/drakkan/sftpgo/commit/2f092d128917e2c059520a2ce3e22c3b5ea7ffd6"
  }, {
    "type" : "PACKAGE",
    "url" : "https://github.com/drakkan/sftpgo"
  }, {
    "type" : "WEB",
    "url" : "https://pkg.go.dev/vuln/GO-2026-4699"
  } ],
  "database_specific" : {
    "cwe_ids" : [ "CWE-22" ],
    "severity" : "MODERATE",
    "github_reviewed" : true,
    "github_reviewed_at" : "2026-03-13T18:55:52Z",
    "nvd_published_at" : "2026-03-13T19:54:35Z"
  }
}