Adminer 6.0.0 Server-Side Request Forgery via ClickHouse driver
Key facts
- Attack vector
- Network
- Privileges required
- None
- User interaction
- Passive
- Attack complexity
- Low
- Attack requirements
- None
- Impact type
- —
- Confidentiality · integrity · availability
- None · Low · None
- Fix status
- Fixed
Attack profile from CVSS 4.0 · CNA. Fix status from CNA.
Summary
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.
Why it matters now
SSVC decision points
CISA ADP · SSVC 2.0.3
- Exploitation
- Poc
- Automatable
- Yes
- Technical impact
- Partial
The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.
Affected products
Remediation
- Fix · CNA adminer (vrana) Fixed in 6.0.2
Fixed in the same release
Records fixed by the same vendor advisory or release, as the CNA lists them.
- Release ·
vrana adminer 6.0.2
4 records Highest priority Priority HIGH 2 HIGH, 2 MEDIUM
Other records, highest priority first
- TI-2026-64854 Adminer before 6.0.2 Privileged-Port SSRF via host_port RegexPriority HIGH 70
- TI-2026-64852 Adminer before 6.0.2 Unauthenticated SSRF via Elasticsearch DriverPriority HIGH 70
- TI-2026-64851 Adminer before 6.0.2 XSS via CONNECTION_ID escalating to RCEPriority MEDIUM 57
Timeline
- 2026-10-02 Threatist record created from CVE-2026-100697
- 2026-10-03 Alias added: GHSA-9w28-5vwj-mq45
References
More Adminer vulnerabilities
- TI-2021-04411 SSRF in adminer KEVCVSS 3.1HIGH 7.2
- TI-2026-40884 Adminer before 5.4.3 Remote Code Execution via MSSQL PDO DSN Injection CVSS 4.0CRITICAL 9.3
- TI-2026-71163 Remote code execution in Adminer via UTF-8 BOM SQLite bypass CVSS 4.0HIGH 8.6
- TI-2026-40882 Adminer before 5.4.3 Remote Code Execution via SQLite VACUUM INTO CVSS 4.0HIGH 8.6
- TI-2026-64854 Adminer before 6.0.2 Privileged-Port SSRF via host_port Regex CVSS 4.0MEDIUM 6.9
- TI-2026-64852 Adminer before 6.0.2 Unauthenticated SSRF via Elasticsearch Driver CVSS 4.0MEDIUM 6.9
Sources
- CVE-2026-100697 · CVE Program
- CVE-2026-100697 · NVD
- FIRST EPSS
- GHSA-9w28-5vwj-mq45 · GitHub Advisory Database · CC BY 4.0
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