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TI-2020-16258 Aliases CVE-2020-26759GHSA-vgv5-cxvh-vfxh

clickhouse-driver before 0.1.5 allows a malicious clickhouse server to trigger a crash or…

Priority MEDIUM 47CWE-120Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Code execution
Confidentiality · integrity · availability
High · High · High
Fix status
Fixed

Attack profile from CVSS 3.1 · NVD. Fix status from CNA and GitHub. Impact type from CWE-120 and the CVSS impact.

Summary

clickhouse-driver before 0.1.5 allows a malicious clickhouse server to trigger a crash or execute arbitrary code (on a database client) via a crafted server response, due to a buffer overflow.

Why it matters now

EPSS 0.0269 85th percentileScored 2026-11-07
Fix Fixed clickhouse-driver (PyPI): 0.1.5

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
——all versions—No fix listedCNA
—clickhouse-driver (PyPI)before 0.1.50.1.5Patch availableGHSA-vgv5-cxvh-vfxh
  • — Vendor— Affected all versions Fixed in — No fix listed CNA
  • clickhouse-driver (PyPI) Vendor— Affected before 0.1.5 Fixed in 0.1.5 Patch available GHSA-vgv5-cxvh-vfxh

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:clickhouse-driver_project:clickhouse-driver:*:*:*:*:*:*:*:*before 0.1.5VulnerableClickhouse-driver Project
  • cpe:2.3:a:clickhouse-driver_project:clickhouse-driver:*:*:*:*:*:*:*:* Versions before 0.1.5 Vulnerable ·Clickhouse-driver Project

Remediation

  • Fix · GHSA-vgv5-cxvh-vfxh clickhouse-driver (PyPI) Fixed in 0.1.5 Advisory →

Timeline

  1. 2026-10-02 Threatist record created from CVE-2020-26759
  2. 2026-10-03 Alias added: GHSA-vgv5-cxvh-vfxh

References

Patch 2

Advisory 2

Other 2

Sources

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