CVE-2026-49244Network attack vectorHinoki check available

Arbitrary file read via prefix-only path check

Published Aug 20, 2026 · Updated Aug 20, 2026

Path traversal in SFTPGo 2.2.0 through 2.7.1 allows remote attackers to read files outside a public share via crafted partial-ZIP requests. The public web-client partial ZIP endpoint canonicalizes each requested file entry but validates it with a raw byte-prefix comparison instead of a directory-boundary-aware check against the shared root. Exposure requires a browsable public share and lets unauthenticated requesters pull sibling files whose canonical paths start with the share directory name.

CVSS severity5.9
Medium
EPSS probability0.37%
Next 30 days · Sep 16, 2026
Known exploitationUnconfirmed
Based on sourced intelligence
Hinoki checkAvailable
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Summary

What happened

Path traversal in SFTPGo 2.2.0 through 2.7.1 allows remote attackers to read files outside a public share via crafted partial-ZIP requests. The public web-client partial ZIP endpoint canonicalizes each requested file entry but validates it with a raw byte-prefix comparison instead of a directory-boundary-aware check against the shared root. Exposure requires a browsable public share and lets unauthenticated requesters pull sibling files whose canonical paths start with the share directory name.

The record

CVE
CVE-2026-49244
Published
Aug 20, 2026
Updated
Aug 20, 2026
Vendor
SOFTWARE ENGINEERING S.R.L.
Product
SFTPGo
Classifications
CWE-22, T1005
Attack vector
network
Privileges
unauthenticated

Timeline

How it unfolded

  1. Aug 20, 2026CVE publishedPublication date reported by the CVE source.
  2. Aug 20, 2026Record updatedLatest update available in the CVE record.

Exploitability

Present is not the same as exploitable

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Is a vulnerable build present?

Compare these published version ranges with your installed build and any vendor patches.

  1. Affected versionversion=>= 2.2.0 < 2.7.2

What conditions does exploitation require?

Attack vectornetwork
Required privilegesunauthenticated

What is affected?

SOFTWARE ENGINEERING S.R.L. · SFTPGoversion=>= 2.2.0 < 2.7.2

Published CVSS scores

5.9GitHub Advisory DatabaseCVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:H/I:N/A:N

CVSS describes severity. EPSS estimates exploitation probability.

Attacks

What attackers are doing with it

Daily unique IPs observed by Shadowserver honeypots for known exploited vulnerabilities (KEVs). Missing observations do not establish an absence of attacks.

Daily unique IPsNo honeypot observations are available for this CVE in the selected window.

No observations available

Sep 9, 2026Sep 15, 2026
Latest reporting daySep 15, 2026
Latest daily unique IPsUnavailable
Prior 30-day averageUnavailable
SourceShadowserver honeypots (KEV)
Vectornetwork
Privilegesunauthenticated
Known exploitationUnconfirmed
Public exploitUnconfirmed

Weakness, pattern, technique

CWE-22Improper Limitation of a Pathname to a Restricted Directory ('Path Traversal')
T1005Data from Local System

Public exploit references

No public exploit references are available in this record.

Labels summarize the accepted research assessment. They do not indicate a test against your environment.

Technologies

Your stack

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Your stack

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