Arbitrary code execution in clickhouse-driver
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.
Affected software
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| Platform | Package | Vulnerable versions | Fixed in |
|---|---|---|---|
| Python (PyPI) | clickhouse-driver | < 0.1.5 | 0.1.5 |
References
- https://github.com/mymarilyn/clickhouse-driver/commit/d708ed548e1d6f254ba81a21de8ba543a53b5598
- https://github.com/mymarilyn/clickhouse-driver/commit/3e990547e064b8fca916b23a0f7d6fe8c63c7f6b
- https://github.com/advisories/GHSA-vgv5-cxvh-vfxh
- https://nvd.nist.gov/vuln/detail/CVE-2020-26759
- https://github.com/mymarilyn/clickhouse-driver
- https://github.com/pypa/advisory-database/tree/main/vulns/clickhouse-driver/PYSEC-2021-61.yaml
- CVSS vector
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H- Weakness (CWE)
CWE-120- Platform
- Python (PyPI)
- Package
clickhouse-driver- Disclosed
- 06.01.2021
- Updated
- 11.10.2026 12:19
Sources and licenses
OSV / GitHub Advisory Database - PYSEC-2021-61 - PyPA Advisory Database; CC BY 4.0
OSV / GitHub Advisory Database - GHSA-vgv5-cxvh-vfxh - CC BY 4.0
Vulnerability history: clickhouse-driver
All published vulnerabilities of this package (Python (PyPI)), newest first. Shows whether this is a one-off slip or a package that needs watching.
This is the only known vulnerability of this package.
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