SFTPGo: Path confinement bypass in public browsable share partial ZIP download (CVE-2026-49244) | HOL Guard CVE

Medium severityCVE-2026-49244GHSA-H64P-8H4R-6GFH

SFTPGo: Path confinement bypass in public browsable share partial ZIP download

Answer in brief

CVE-2026-49244 records a Medium severity vulnerability in SFTPGo: Path confinement bypass in public browsable share partial ZIP download. The current sources do not mark it as known exploited. The current feed maps drakkan/sftpgo (generic), github.com/drakkan/sftpgo/v2 (go). Check affected ranges and fixed versions before updating.

Analysis pending evidence review

HOL Guard separates source facts from reviewed analysis. See the methodology.

Published Aug 20, 2026Updated Aug 20, 2026Source checked Aug 21, 2026First seen by HOL Jul 2, 2026Material review Aug 20, 2026

Upstream Advisory

Key facts

Risk: Medium
Exploitation: Not marked as known exploited
Affected software: 2 mapped packages or products
Fix availability: Available

Why this deserves its current priority

A CVSS score is not reported in the current record. The current sources do not mark it as known exploited. Treat this as a source-backed prioritization signal, not a statement about your environment.

Analysis status

Analysis pending evidence review

Factual feed record only; HOL analysis is not approved for indexing. Read the methodology.

Affected scope and exposure questions

The current feed maps drakkan/sftpgo (generic), github.com/drakkan/sftpgo/v2 (go). Check affected ranges and fixed versions before updating.

Mapped affected packages and fixed versions
Package	Affected range	Fixed version
drakkan/sftpgogeneric	>= 2.2.0 < 2.7.2	Not reported
github.com/drakkan/sftpgo/v2go	>=2.2.0,<=2.7.1	2.7.3

Recommended response

Check inventory. Check lockfiles and deployed manifests for drakkan/sftpgo, github.com/drakkan/sftpgo/v2.
Review the reported fix. Update github.com/drakkan/sftpgo/v2 to 2.7.3 if you use the affected versions. Test the change in a non-production environment first.

Evidence timeline and material changes

Published upstream
Aug 20, 2026
Evidence: source:cvelist:source_dates:source-dates:record
Source modified
Aug 20, 2026
Evidence: source:cvelist:source_dates:source-dates:record
First seen by HOL
Jul 2, 2026

Sources and claim methodology

Upstream source 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.

Quoted source text, attributed separately from HOL analysis.