# PgBouncer vulnerabilities

Source: https://junglewise.ai/threats/technologies/pgbouncer-pgbouncer  
Publisher: Junglewise Threat Intelligence, https://junglewise.ai/threats  
Updated: 9 November 2026, 03:07 UTC. Rebuilt every hour.  
Data: https://junglewise.ai/threats/technologies/pgbouncer-pgbouncer.json  
License: CC BY 4.0 with a link back

Junglewise Threat Intelligence has tracked 5 vulnerabilities in PgBouncer: 0 in the last 7 days and 4 in the last 90 days, 0 of them critical and 0 exploited in the wild. The most recent, CVE-2026-107350, was published on 14 October 2026. 2 vulnerabilities in the last four weeks, level on the four before (2).

## Counts

- Last 7 days: 0
- Last 30 days: 2
- Last 90 days: 4
- All time: 5 (0 critical, 0 exploited in the wild)

## About PgBouncer

PgBouncer is a lightweight PostgreSQL connection pooler for managing database connections.

## Latest PgBouncer vulnerabilities

- [CVE-2026-107350: PgBouncer authentication bypass in SCRAM](https://junglewise.ai/threats/cve-2026-107350-improper-authentication-in-pgbouncer-1-17-0-through-1-26-0) (high, CVSS 8.8, published 14 Oct 2026)
- [CVE-2026-107349: PgBouncer infinite loop denial of service in startup message parsing](https://junglewise.ai/threats/cve-2026-107349-an-infinite-loop-in-pgbouncer-1-20-0-through-1-26-0-allows-an) (high, CVSS 7.5, published 14 Oct 2026)
- [CVE-2026-6669: PgBouncer uncontrolled CPU consumption in SCRAM authentication](https://junglewise.ai/threats/cve-2026-6669-missing-upper-bound-on-the-key-derivation-iteration-count-accepted) (medium, CVSS 5.9, published 23 Sep 2026)
- [CVE-2026-6668: PgBouncer integer overflow in packet buffer growth](https://junglewise.ai/threats/cve-2026-6668-integer-overflow-in-the-packet-buffer-growth-logic-in-pgbouncer) (high, CVSS 7.5, published 23 Sep 2026)
- [CVE-2025-12819: Untrusted search path in auth_query connection handler in PgBouncer before 1.25.1 allows an unauthenticated attacker…](https://junglewise.ai/threats/cve-2025-12819-untrusted-search-path-in-auth-query-connection-handler-in) (high, CVSS 7.5, published 3 Dec 2025)

## Most severe PgBouncer vulnerabilities

- [CVE-2026-107350: PgBouncer authentication bypass in SCRAM](https://junglewise.ai/threats/cve-2026-107350-improper-authentication-in-pgbouncer-1-17-0-through-1-26-0) (high, CVSS 8.8, published 14 Oct 2026)
- [CVE-2026-107349: PgBouncer infinite loop denial of service in startup message parsing](https://junglewise.ai/threats/cve-2026-107349-an-infinite-loop-in-pgbouncer-1-20-0-through-1-26-0-allows-an) (high, CVSS 7.5, published 14 Oct 2026)
- [CVE-2026-6668: PgBouncer integer overflow in packet buffer growth](https://junglewise.ai/threats/cve-2026-6668-integer-overflow-in-the-packet-buffer-growth-logic-in-pgbouncer) (high, CVSS 7.5, published 23 Sep 2026)
- [CVE-2025-12819: Untrusted search path in auth_query connection handler in PgBouncer before 1.25.1 allows an unauthenticated attacker…](https://junglewise.ai/threats/cve-2025-12819-untrusted-search-path-in-auth-query-connection-handler-in) (high, CVSS 7.5, published 3 Dec 2025)
- [CVE-2026-6669: PgBouncer uncontrolled CPU consumption in SCRAM authentication](https://junglewise.ai/threats/cve-2026-6669-missing-upper-bound-on-the-key-derivation-iteration-count-accepted) (medium, CVSS 5.9, published 23 Sep 2026)

## Vulnerabilities per week

2 vulnerabilities in the last four weeks, level on the four before (2).

| Week of | Vulns | Critical | Exploited |
| --- | --- | --- | --- |
| 17 Aug 2026 | 0 | 0 | 0 |
| 24 Aug 2026 | 0 | 0 | 0 |
| 31 Aug 2026 | 0 | 0 | 0 |
| 7 Sep 2026 | 0 | 0 | 0 |
| 14 Sep 2026 | 0 | 0 | 0 |
| 21 Sep 2026 | 2 | 0 | 0 |
| 28 Sep 2026 | 0 | 0 | 0 |
| 5 Oct 2026 | 0 | 0 | 0 |
| 12 Oct 2026 | 2 | 0 | 0 |
| 19 Oct 2026 | 0 | 0 | 0 |
| 26 Oct 2026 | 0 | 0 | 0 |
| 2 Nov 2026 | 0 | 0 | 0 |
| 9 Nov 2026 | 0 | 0 | 0 |

## Sources

NVD, GitHub Security Advisories, OSV, the CISA Known Exploited Vulnerabilities catalog, FIRST EPSS and vendor advisories. Rebuilt every hour. Cite as: Junglewise Threat Intelligence, "PgBouncer vulnerabilities", https://junglewise.ai/threats/technologies/pgbouncer-pgbouncer, 9 November 2026.