# CVE-2025-1386: Query smuggling in ch-go library

> CVE-2025-1386: Query smuggling in ch-go library. CVSS 4.9 (CVSS 3.1).

Canonical: https://rewindex.com/cve/CVE-2025-1386
Last updated: 2026-06-17T08:39:02Z

- Published: 2025-04-11 04:27 UTC · Updated: 2026-06-17 08:39 UTC · Assigner: ClickHouse
- CVSS: 4.9 (CVSS 3.1) · Severity: Medium · Vector: CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:N
- EPSS: 0.39%, 33th percentile (scored 2026-10-25)
- CISA KEV: no

## Description

When using the ch-go library, under a specific condition when the query includes a large, uncompressed malicious external data, it is possible for an attacker in control of such data to smuggle another query packet into the connection stream.

## Affected vendors and products

- ch-go: ch-go

## Tracked companies

- [ClickHouse Cloud](https://rewindex.com/company/clickhouse-cloud.md)

## References

- [CVE record on cve.org](https://www.cve.org/CVERecord?id=CVE-2025-1386)
- [NVD entry](https://nvd.nist.gov/vuln/detail/CVE-2025-1386)
- [https://github.com/ClickHouse/ch-go/security/advisories/GHSA-m454-3xv7-qj85](https://github.com/ClickHouse/ch-go/security/advisories/GHSA-m454-3xv7-qj85)

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_Sources: CVE records from the CVE Program (cve.org). CVE® is a registered trademark of The MITRE Corporation. (https://www.cve.org/) This product uses data from the NVD API but is not endorsed or certified by the NVD. (https://nvd.nist.gov/) Known Exploited Vulnerabilities catalog from CISA. (https://www.cisa.gov/known-exploited-vulnerabilities-catalog) EPSS scores from FIRST (Exploit Prediction Scoring System). (https://www.first.org/epss/)_


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Canonical: https://rewindex.com/cve/CVE-2025-1386 · Markdown: https://rewindex.com/cve/CVE-2025-1386.md · JSON: https://rewindex.com/api/v1/cves/CVE-2025-1386 · Data licensed CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/) · Generated 2026-10-26T03:09:57.307Z