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Advisory record · GHSA-xp79-5mx3-jx52

Gogs has Unauthenticated Asymmetric Denial of Service (DoS) via SSH Handshake Stall (File Descriptor Exhaustion)

CVSS 5.5 MediumEPSS 0.0055 · 46th percentile

Published by the GitHub Advisory Database at 23 Jun 2026, 17:12 UTC. agentprime has not analysed this yet, so whether it affects any app is not known.

PackageEcosystemAffectedFixed in
gogs.io/gogsGo<0.14.30.14.3
Identifiers
GHSA-xp79-5mx3-jx52 · CVE-2026-52814 · GO-2026-5765
Weakness (CWE)
CWE-400
Tags
Published
23 Jun 2026
Updated
21 Jul 2026

Machine-written summary

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

Gogs versions before 0.14.3 are vulnerable when using the built-in Go SSH server. The server does not set read or write deadlines on incoming SSH connections, so an unauthenticated attacker over the network can open many connections and withhold the SSH banner, exhausting file descriptors and blocking legitimate SSH access to Git. Upgrade to Gogs 0.14.3 or later. The source gives no workaround.

Written 6 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
5.5 Medium 4.0 CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:N/VI:N/VA:L/SC:N/SI:N/SA:N/E:P CNA (GitHub_M)
  • CISA KEV Not listed.
  • EPSS 0.0055, the 46th percentile, on 15 Nov 2026: FIRST’s estimate of the chance of exploitation in the next 30 days.

Timeline

  1. 31 Oct 2026, 15:05 UTC First seen by agentprime
  2. 31 Oct 2026, 15:05 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.