SFTPGo: Denial of service via malformed SSH channel request

MITRE NVD CVE.ORG JSON API

Summary

CVECVE-2026-77375
StatePUBLISHED
AssignerGitHub_M
Source PriorityCVE Program / NVD first with legacy fallback
Published2026-10-13 15:17:49 UTC
Updated2026-10-13 16:17:22 UTC
DescriptionSFTPGo is an open source, event-driven file transfer solution. Prior to 2.7.5, an authenticated SSH user can send a malformed protocol message while opening a channel, causing an unhandled error that terminates the server process and affects all connected users until restart. No confidentiality or integrity impact has been identified. This issue is fixed in 2.7.5.

Risk And Classification

Primary CVSS: v3.1 6.5 MEDIUM from [email protected]

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Problem Types: CWE-129 | CWE-129 CWE-129: Improper Validation of Array Index

VersionSourceTypeScoreSeverityVector
3.1[email protected]Secondary6.5MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H
3.1CNADECLARED6.5MEDIUMCVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

CVSS v3.1 Breakdown

Attack Vector
Network
Attack Complexity
Low
Privileges Required
Low
User Interaction
None
Scope
Unchanged
Confidentiality
None
Integrity
None
Availability
High

CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H

Vendor Declared Affected Products

SourceVendorProductVersionPlatforms
CNA Drakkan Sftpgo affected < 2.7.5 Not specified

References

ReferenceSourceLinkTags
github.com/drakkan/sftpgo/security/advisories/GHSA-q7pc-356p-hggc [email protected] github.com
github.com/drakkan/sftpgo/releases/tag/v2.7.5 [email protected] github.com
github.com/drakkan/sftpgo/commit/4f751232d7025cf2f7360e01ee8dca81e74b48b0 [email protected] github.com
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