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TI-2015-03418 Aliases CVE-2015-4054GHSA-x9fq-f586-fh7x

PgBouncer before 1.5.5 allows remote attackers to cause a denial of service (NULL pointer…

Priority MEDIUM 40CWE-476Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
None
Attack complexity
Low
Impact type
Denial of service
Confidentiality · integrity · availability
None · None · High
Fix status
No fix listed

Attack profile from CVSS 3.0 · NVD. Fix status from CNA. Impact type from CWE-476.

Summary

PgBouncer before 1.5.5 allows remote attackers to cause a denial of service (NULL pointer dereference and crash) by sending a password packet before a startup packet.

Why it matters now

EPSS 0.0413 90th percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix No fix listed No fixed version in the sources yet

SSVC decision points

Not available: CISA has not published SSVC decision points for this record.

Affected products

VendorProductAffected versionsFixed inStatusSource
——all versions—No fix listedCNA
  • — Vendor— Affected all versions Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:pgbouncer:pgbouncer:*:*:*:*:*:*:*:*up to 1.5.4VulnerablePgbouncer
  • cpe:2.3:a:pgbouncer:pgbouncer:*:*:*:*:*:*:*:* Versions up to 1.5.4 Vulnerable ·Pgbouncer

Remediation

No fixed version listed by the sources yet.

Vendor assessments

Red Hat

Red Hat's page for this CVE →

Not affected: 1 product
  • Red Hat

Timeline

  1. 2026-10-02 Threatist record created from CVE-2015-4054
  2. 2026-10-03 Alias added: GHSA-x9fq-f586-fh7x

References

Exploit 1

Patch 2

Advisory 3

  • TI-2026-05848 PgBouncer buffer overflow in SCRAM CVSS 3.1CRITICAL 9.8
  • TI-2025-02011 PgBouncer default auth_query does not take Postgres password expiry into account CVSS 3.1CRITICAL 9.8
  • TI-2015-05716 PgBouncer 1.6.x before 1.6.1, when configured with auth_user, allows remote attackers to… CVSS 3.0HIGH 8.1
  • TI-2025-11742 Untrusted search path in auth_query connection in PgBouncer CVSS 3.1HIGH 8.1
  • TI-2021-02842 SQL injection in pgbouncer CVSS 3.1HIGH 8.1
  • TI-2026-05847 PgBouncer integer overflow in PgBouncer network packet parsing CVSS 3.1HIGH 7.5
See all 9 →

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences