# CVE-2026-100697: Adminer 6.0.0 Server-Side Request Forgery via ClickHouse driver

> Unauthenticated attackers can exploit the ClickHouse driver to perform SSRF, accessing internal services and leaking sensitive response data.

- **Severity:** Medium 5.3 (`CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:P/VC:N/VI:L/VA:N/SC:L/SI:L/SA:L`)
- **Exploited in the wild:** Not known
- **Login needed:** Not needed
- **Attackable:** Over the internet
- **Victim action needed:** A user has to click or open something
- **Fix available:** Yes
- **Published:** 26 Sep 2026
- **Updated:** 30 Sep 2026
- **Also known as:** DEBIAN-CVE-2026-100697, GHSA-77qq-q8fv-x45v, GHSA-9w28-5vwj-mq45, UBUNTU-CVE-2026-100697

## What is CVE-2026-100697?

CVE-2026-100697 is a medium-severity server-side request forgery vulnerability in vrana adminer, published on 26 Sep 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.

### Official description

Adminer 6.0.0 through 6.0.1, when the official ClickHouse driver plugin (plugins/drivers/clickhouse.php, rewritten in 6.0.0) is loaded, is vulnerable to pre-authentication server-side request forgery. An unauthenticated attacker can submit auth[driver]=clickhouse with auth[server] set to an arbitrary URL (for example http://127.0.0.1:18089), causing the Adminer server to issue an HTTP POST containing 'SELECT version()' to that host. In rootQuery(), if the target returns a status outside 200-299 (other than 401/403), the raw HTTP response body is assigned to the connection error and rendered on the login page, so the attacker receives the full response body of the internal service. This enables internal network/port reconnaissance and disclosure of sensitive information contained in internal error pages (stack traces, internal hostnames, file paths, configuration identifiers). Fixed in Adminer 6.0.2.

Weakness: CWE-918 (Server-Side Request Forgery)

## Which versions are affected by CVE-2026-100697?


## How do I fix CVE-2026-100697?

Upgrade to a fixed version.

## Is CVE-2026-100697 being exploited?

It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-100697 exists.

## Fix prompt for AI coding agents

```text
Check this codebase for CVE-2026-100697 and fix it if it is affected.

What it is: CVE-2026-100697 is a medium-severity server-side request forgery vulnerability in vrana adminer, published on 26 Sep 2026. An attacker can exploit it over the internet without logging in, and only if a user opens a file or follows a link.
Exploitation: It is not confirmed as exploited in the wild, but public exploit code for CVE-2026-100697 exists.

Affected product: vrana adminer. 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-2026-100697/ (Markdown: https://insights.sbomify.com/CVE-2026-100697/index.md)
```

## Sources

- CVE record: https://www.cve.org/CVERecord?id=CVE-2026-100697
- NVD: https://nvd.nist.gov/vuln/detail/CVE-2026-100697
- OSV: https://osv.dev/vulnerability/CVE-2026-100697

---
From sbomify Insights: https://insights.sbomify.com/CVE-2026-100697/
Summaries are generated and may contain mistakes; the official description above is the record.