Vulnerability Report

CVE-2026-51992

Title: ClickHouse Server SQL Injection RCE

Other

Proof Of Concept

PoC Available for CVE-2026-51992

CWE Category NVD-CWE-noinfo
Published Date Jul 29, 2026
Modified Date Aug 06, 2026
Exploit Status Available
Score 0.0 CVSS v
Exploit Probability (EPSS)
0.52%

Vulnerability Summary

CVE-2026-51992: Rejected reason: This CVE ID has been rejected or withdrawn by its CVE Numbering Authority. ClickHouse's PostgreSQL integration intentionally allows users with valid PostgreSQL credentials to execute queries against a remote PostgreSQL server. No vulnerability in ClickHouse is exploited; code execution occurs on the downstream PostgreSQL server using credentials explicitly provided by the user with specific pg_execute_server_program permission, exploiting a feature that was wrongly reported as CVE-2019-9193 in PostgreSQL (https://www.postgresql.org/about/news/cve-2019-9193-not-a-security-vulnerability-1935/).

Impacted Vendors

Analysis in Progress...

Reference Links

https://clickhouse.com/docs/sql-reference/dictionaries#postgresql https://github.com/TheLiimbo/CVE-2026-51992
CVSS v3.1
Source Entity 134c704f-9b21-4f2e-91b3-4a467353bcc0
Severity CRITICAL
9.1
Attack Vector
NETWORK
Complexity
LOW
Privileges
N/A
Interaction
NONE
Confidentiality
N/A
Integrity
N/A
Availability
N/A
Scope
UNCHANGED
RAW VECTOR CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

Associated Attack Patterns (CAPEC)

Total: Patterns

CVE-2026-51992 Exploits & PoCs (Proof Of Concept)

GitHub https://github.com/TheLiimbo/CVE-2026-51992
View Code
MODIFIED

Vulnerability data updated via NVD.

MODIFIED

Vulnerability data updated via NVD.

MODIFIED

Vulnerability data updated via NVD.

MODIFIED

Vulnerability data updated via NVD.

Attack Vector Matrix

Access Vector NETWORK
Complexity LOW
Privileges N/A
Interaction NONE
CVSS Vector String CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N

Affected Stack

No specific products linked.