CVE-2026-6666
Received Received - Intake
Null Pointer Dereference in PgBouncer

Publication date: 2026-05-09

Last updated on: 2026-05-09

Assigner: PostgreSQL

Description
A possible null pointer reference in PgBouncer before 1.25.2 could lead to a crash, if a server sends an error response without SQLSTATE field.
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Meta Information
Published
2026-05-09
Last Modified
2026-05-09
Generated
2026-06-19
AI Q&A
2026-05-09
EPSS Evaluated
2026-06-18
NVD
CVE-2026-6666
EUVD
EUVD-2026-28878
Affected Vendors & Products
Showing 1 associated CPE
Vendor Product Version / Range
pgbouncer pgbouncer to 1.25.2 (exc)
Helpful Resources
Exploitability
CWE
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KEV
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CWE ID Description
CWE-476 The product dereferences a pointer that it expects to be valid but is NULL.
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Executive Summary

This vulnerability is a possible null pointer reference in PgBouncer versions before 1.25.2. It occurs when a server sends an error response that lacks the SQLSTATE field, which can cause PgBouncer to crash.

Impact Analysis

The impact of this vulnerability is that PgBouncer may crash if it receives an error response without the SQLSTATE field. This can lead to denial of service, affecting the availability of the database connection pooling service.

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