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Advisory record · GHSA-q7pc-356p-hggc

SFTPGo: Denial of service via malformed SSH channel request

CVSS 6.5 MediumEPSS 0.0031 · 23rd percentile

Published by the GitHub Advisory Database at 15 Oct 2026, 20:14 UTC. agentprime has not analysed this yet, so whether it affects any app is not known.

PackageEcosystemAffectedFixed in
github.com/drakkan/sftpgo/v2Go<2.7.52.7.5
Identifiers
GHSA-q7pc-356p-hggc · CVE-2026-77375 · GO-2026-6792
Weakness (CWE)
CWE-129
Tags
Published
15 Oct 2026
Updated
19 Oct 2026

Machine-written summary

Summary written by Claude Haiku from the source advisory. Not reviewed by a person.

SFTPGo versions before 2.7.5 are vulnerable to a denial of service. An authenticated SSH client can send a malformed message while opening a channel, which crashes the server process and disrupts all connected users until the service is restarted. Upgrade to SFTPGo 2.7.5 or later. No workaround is listed.

Written 1 Nov 2026.

Not analysed yet

We haven’t published our analysis of this Advisory yet. Once a person has reviewed it, this page will say what’s vulnerable, what has to be true for your app to be affected, and how to check.

Severity and exploitation

ScoreRatingCVSSVectorSource
6.5 Medium 3.1 CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:H CNA (GitHub_M)
  • CISA KEV Not listed.
  • EPSS 0.0031, the 23rd percentile, on 5 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

  1. 31 Oct 2026, 14:11 UTC First seen by agentprime
  2. 31 Oct 2026, 14:11 UTC Confirmed by OSV

Sources

Facts on this page come from the GitHub Advisory Database (CC-BY 4.0), OSV and the other sources listed, as published. We don’t reproduce full advisory descriptions, which can contain exploit code.