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

> Attackers can smuggle query packets into the connection stream via malicious external data, potentially altering database interactions.

- **Severity:** Medium 5.9 (`CVSS:4.0/AV:N/AC:H/AT:N/PR:H/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N`)
- **Exploited in the wild:** Not known
- **Login needed:** An administrator
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** Yes
- **Published:** 11 Apr 2025
- **Updated:** 11 Apr 2025
- **Also known as:** GHSA-m454-3xv7-qj85, GO-2025-3603

## What is CVE-2025-1386?

CVE-2025-1386 is a medium-severity vulnerability in ch-go, published on 11 Apr 2025. An attacker needs administrator access to exploit it, with no action from the victim.

### Official 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.

Weakness: CWE-444 (Inconsistent Interpretation of HTTP Requests)

## Which versions are affected by CVE-2025-1386?

3 open source packages ship an affected version, including github.com/ClickHouse/ch-go. It affects 1 product.


| Package | Ecosystem | Affected | Fixed in |
| --- | --- | --- | --- |
| `github.com/ClickHouse/ch-go` | Go | All versions | 0.65.0 |
| `github.com/ClickHouse/ch-go` | Go | All versions | 0.65.0 |
| `github.com/ClickHouse/ch-go` | Go | All versions | 0.65.0 |

Products: Clickhouse Ch.

## How do I fix CVE-2025-1386?

Upgrade github.com/ClickHouse/ch-go to 0.65.0 or later.

## Is CVE-2025-1386 being exploited?

There is no known exploitation of CVE-2025-1386 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2025-1386 and fix it if it is affected.

What it is: CVE-2025-1386 is a medium-severity vulnerability in ch-go, published on 11 Apr 2025. An attacker needs administrator access to exploit it, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2025-1386 in the wild and no public exploit code.

Affected packages and fixed versions:
- github.com/ClickHouse/ch-go (Go): affected all versions; fixed in 0.65.0
- github.com/ClickHouse/ch-go (Go): affected all versions; fixed in 0.65.0
- github.com/ClickHouse/ch-go (Go): affected all versions; fixed in 0.65.0

Task:
1. Search the dependency manifests and lockfiles (for example package.json, package-lock.json, requirements.txt, poetry.lock, uv.lock, pom.xml, build.gradle, go.mod, Cargo.lock, Gemfile.lock) and any Dockerfiles for the affected packages, including transitive dependencies.
2. If an affected version is in use, upgrade it to the fixed version for its release line with the project's package manager, so the lockfile is regenerated. Prefer the smallest upgrade that fixes it.
3. If there is no fix, or the upgrade would break the build, do not guess: explain the risk and the safest workaround instead.
4. Run the tests and summarise what changed and why.
5. If nothing in the project is affected, say so and change nothing.

Reference: https://insights.sbomify.com/CVE-2025-1386/ (Markdown: https://insights.sbomify.com/CVE-2025-1386/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2025-1386
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2025-1386
- OSV: https://osv.dev/vulnerability/CVE-2025-1386

---
From sbomify Insights: https://insights.sbomify.com/CVE-2025-1386/
Summaries are generated and may contain mistakes; the official description above is the record.