CVE-2025-1386: ch Request Smuggling — Fix

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.

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CVSS v3.1 Score

4.9

MEDIUM

CVSS:3.1/AV:N/AC:L/PR:H/UI:N/S:U/C:N/I:H/A:N

Weakness Type (CWE)

CWE-444 CWE-444

Affected Products

Vendor	Product	Versions
clickhouse	ch	< 0.65.0

References

Advisories & Patches

https://github.com/ClickHouse/ch-go/security/advisories/GHSA-m454-3xv7-qj85

Frequently Asked Questions

What is CVE-2025-1386? +

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. It has a CVSS v3.1 base score of 4.9 (MEDIUM).

How severe is CVE-2025-1386? +

CVE-2025-1386 has a CVSS v3.1 score of 4.9 out of 10, rated MEDIUM. This is a medium-severity vulnerability that should be remediated as part of regular maintenance.

What products are affected by CVE-2025-1386? +

CVE-2025-1386 affects products from clickhouse, specifically: ch. Check the affected products table above for specific version ranges.

How do I check if I'm vulnerable to CVE-2025-1386? +

You can use Secably's free Website Scanner to check your website for known vulnerabilities. For infrastructure scanning, use the Port Scanner to identify exposed services that may be affected. Check the vendor advisories linked above for specific patch and version information.

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