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TI-2026-37923 Aliases CVE-2026-52814GHSA-xp79-5mx3-jx52

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

Priority MEDIUM 64CWE-400Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Attack requirements
None
Impact type
Denial of service
Confidentiality · integrity · availability
None · None · Low
Fix status
Fixed

Attack profile from CVSS 4.0 · CNA. Fix status from CNA and GitHub. Impact type from CWE-400.

Summary

Gogs is an open source self-hosted Git service. Prior to 0.14.3, the Gogs built-in Go SSH server is vulnerable to an unauthenticated, asymmetric Denial of Service (DoS) attack. The application accepts inbound TCP connections and passes them to golang.org/x/crypto/ssh.NewServerConn inside a new goroutine without enforcing any read/write deadlines on the underlying net.Conn. An unauthenticated attacker can open multiple TCP connections to the SSH port and simply withhold the SSH protocol banner. This forces the server to spawn an unbounded number of goroutines that block indefinitely waiting for socket I/O. This leads to complete File Descriptor (FD) exhaustion, preventing legitimate users from accessing the Git SSH service, and ultimately destabilizing the entire Gogs process (e.g., causing internal log rotation failures). This vulnerability is fixed in 0.14.3.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00547 46th percentileScored 2026-11-07
Fix Fixed gogs (gogs): 0.14.3gogs.io/gogs (Go): 0.14.3

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
Yes
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
Gogsgogsbefore 0.14.30.14.3Patch availableCNA
—gogs.io/gogs (Go)before 0.14.30.14.3Patch availableGHSA-xp79-5mx3-jx52
  • gogs VendorGogs Affected before 0.14.3 Fixed in 0.14.3 Patch available CNA
  • gogs.io/gogs (Go) Vendor— Affected before 0.14.3 Fixed in 0.14.3 Patch available GHSA-xp79-5mx3-jx52

CPE names Threatist (inferred) · 1

Inferred from how NVD named this product before; not given by a source.

CPEVersionsRoleVendor
cpe:2.3:a:gogs:gogs:*:*:*:*:*:*:*:*——Gogs
  • cpe:2.3:a:gogs:gogs:*:*:*:*:*:*:*:* Versions — — ·Gogs

Remediation

  • Fix · CNA gogs (gogs) Fixed in 0.14.3
  • Fix · GHSA-xp79-5mx3-jx52 gogs.io/gogs (Go) Fixed in 0.14.3 Advisory →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2026-52814
  2. 2026-10-03 Alias added: GHSA-xp79-5mx3-jx52

References

Advisory 1

Other 5

  • TI-2025-07419 File overwrite in file update API in Gogs KEVCVSS 4.0HIGH 8.7
  • TI-2022-01876 OS Command Injection in gogs/gogs CVSS 3.1CRITICAL 9.8
  • TI-2024-36988 Gogs has a Path Traversal in file update API CVSS 4.0HIGH 8.7
  • TI-2026-37922 Gogs: Path Traversal in organization name results in RCE through Git hooks CVSS 3.1CRITICAL 10.0
  • TI-2022-01744 Remote Command Execution in gogs/gogs CVSS 3.1CRITICAL 10.0
  • TI-2025-39562 Gogs's update .git/config file allows remote command execution CVSS 4.0CRITICAL 9.3
See all 75 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences