Withdrawn: this CVE is not a vulnerability
The assigning CNA withdrew CVE-2026-51992 on 6 August 2026, and it carries the Rejected state at CVE.org and NVD. It must not be treated as a live finding. Its pre-withdrawal severity, score and exploitability are withheld below; the record itself is kept because withdrawals are reversible and because the reject reason is the correction worth publishing.
CVE-2026-51992
ClickHouse Server SQL Injection Vulnerability
Description
Rejected reason: This CVE ID has been rejected or withdrawn by its CVE Numbering Authority.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/).
INFO
Published Date :
July 29, 2026, 5:16 p.m.
Last Modified :
Aug. 6, 2026, 9:16 a.m.
Remotely Exploit :
—
Source :
cb7ba516-3b07-4c98-b0c2-715220f1a8f6
Affected Products
The following products are affected by CVE-2026-51992
vulnerability.
Even if cvefeed.io is aware of the exact versions of the
products
that
are
affected, the information is not represented in the table below.
No affected product recoded yet
CVSS Scores
| Score | Version | Severity | Vector | Exploitability Score | Impact Score | Source |
|---|---|---|---|---|---|---|
| CVSS | 134c704f-9b21-4f2e-91b3-4a467353bcc0 | |||||
| CVSS 3.1 | CRITICAL | 134c704f-9b21-4f2e-91b3-4a467353bcc0 |
We scan GitHub repositories to detect new proof-of-concept exploits. Following list is a collection of public exploits and proof-of-concepts, which have been published on GitHub (sorted by the most recently updated).
Results are limited to the first 15 repositories due to potential performance issues.
The following list is the news that have been mention
CVE-2026-51992 vulnerability anywhere in the article.
The following table lists the changes that have been made to the
CVE-2026-51992 vulnerability over time.
Vulnerability history details can be useful for understanding the evolution of a vulnerability, and for identifying the most recent changes that may impact the vulnerability's severity, exploitability, or other characteristics.
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CVE Rejected by cb7ba516-3b07-4c98-b0c2-715220f1a8f6
Aug. 06, 2026
Action Type Old Value New Value -
CVE Modified by cb7ba516-3b07-4c98-b0c2-715220f1a8f6
Aug. 06, 2026
Action Type Old Value New Value Changed Description SQL Injection vulnerability in ClickHouse Server Versions <= 26.3.9.8 allows a remote attacker to execute arbitrary code via the create dictionaries function. 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/). Removed CVSS V3.1 CISA-ADP: AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N Removed CWE CISA-ADP: CWE-89 Removed Reference MITRE: https://clickhouse.com/docs/sql-reference/dictionaries#postgresql Removed Reference MITRE: https://github.com/TheLiimbo/CVE-2026-51992 Removed Affected [{'vendor': 'n/a', 'product': 'n/a', 'versions': [{'status': 'affected', 'version': 'n/a'}]}] Removed SSVC {'id': 'CVE-2026-51992', 'role': 'CISA Coordinator', 'options': [{'exploitation': 'none'}, {'automatable': 'yes'}, {'technicalImpact': 'total'}], 'version': '2.0.3', 'timestamp': '2026-07-29T18:10:52.722326Z'} -
CVE Modified by 134c704f-9b21-4f2e-91b3-4a467353bcc0
Jul. 29, 2026
Action Type Old Value New Value Added CVSS V3.1 AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:N Added CWE CWE-89 Added SSVC {'id': 'CVE-2026-51992', 'role': 'CISA Coordinator', 'options': [{'exploitation': 'none'}, {'automatable': 'yes'}, {'technicalImpact': 'total'}], 'version': '2.0.3', 'timestamp': '2026-07-29T18:10:52.722326Z'} -
New CVE Received by [email protected]
Jul. 29, 2026
Action Type Old Value New Value Added Affected [{'vendor': 'n/a', 'product': 'n/a', 'versions': [{'status': 'affected', 'version': 'n/a'}]}] Added Description SQL Injection vulnerability in ClickHouse Server Versions <= 26.3.9.8 allows a remote attacker to execute arbitrary code via the create dictionaries function. Added Reference https://clickhouse.com/docs/sql-reference/dictionaries#postgresql Added Reference https://github.com/TheLiimbo/CVE-2026-51992