# CVE-2026-75910: Incorrect privilege assignment in the Amazon aws-athena-query-federation ClickHouse connector deployment template

> An authenticated user can read arbitrary AWS Secrets Manager secrets by manipulating the ClickHouse connector's connection string in the deployment template.

- **Severity:** High 7.1 (`CVSS:4.0/AV:N/AC:L/AT:N/PR:L/UI:N/VC:H/VI:N/VA:N/SC:N/SI:N/SA:N`)
- **Exploited in the wild:** Not known
- **Login needed:** Any signed-in user
- **Attackable:** Over the internet
- **Victim action needed:** Not needed
- **Fix available:** No
- **Published:** 20 Aug 2026
- **Updated:** 25 Aug 2026
- **Also known as:** GHSA-vmjg-c6wv-wjm9

## What is CVE-2026-75910?

CVE-2026-75910 is a high-severity missing authorization vulnerability in AWS Athena Federated Query Clickhouse Connector deployment template, published on 20 Aug 2026. Any signed-in user can exploit it over the network, with no action from the victim.

### Official description

Incorrect privilege assignment in the ClickHouse connector deployment template in Amazon Athena Federated Query prior to v2026.17.1 could allow an authenticated remote user to read arbitrary AWS Secrets Manager secrets in the deploying account by pointing the connector's connection string at an unrelated secret and at a database endpoint under the user's control, causing the connector to transmit the secret to that endpoint. To remediate this issue, users should upgrade to aws-athena-query-federation connectors version v2026.17.1 or later and ensure that any forked or derivative code is patched to incorporate the new fixes. Alternatively, to remediate this issue, users should redeploy the connector with the current template and supply a non-empty SecretNamePrefix value.

Weakness: CWE-266 (Incorrect Privilege Assignment)

## Which versions are affected by CVE-2026-75910?


## How do I fix CVE-2026-75910?

No fix has been published for CVE-2026-75910 yet. Limit exposure of the affected software until one is available.

## Is CVE-2026-75910 being exploited?

There is no known exploitation of CVE-2026-75910 in the wild and no public exploit code.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-75910 and fix it if it is affected.

What it is: CVE-2026-75910 is a high-severity missing authorization vulnerability in AWS Athena Federated Query Clickhouse Connector deployment template, published on 20 Aug 2026. Any signed-in user can exploit it over the network, with no action from the victim.
Exploitation: There is no known exploitation of CVE-2026-75910 in the wild and no public exploit code.

Affected product: AWS Athena Federated Query Clickhouse Connector deployment template. No package-level version data is available, so check the vendor advisory linked from the reference page.

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-2026-75910/ (Markdown: https://insights.sbomify.com/CVE-2026-75910/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-75910
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-75910
- OSV: https://osv.dev/vulnerability/CVE-2026-75910

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From sbomify Insights: https://insights.sbomify.com/CVE-2026-75910/
Summaries are generated and may contain mistakes; the official description above is the record.