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TI-2026-05850 Aliases CVE-2026-6667GHSA-gc77-jrv9-6fjp

PgBouncer missing authorization check in KILL_CLIENT admin command

Priority LOW 20CWE-862Published · Updated

Key facts

Attack vector
Network
Privileges required
Low
User interaction
None
Attack complexity
Low
Impact type
Security bypass
Confidentiality · integrity · availability
None · None · Low
Fix status
Fixed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-862.

Summary

PgBouncer before 1.25.2 did not perform an appropriate authorization check for the KILL_CLIENT admin command. All users with access to the administration console (which itself requires authorization) could run this command. It would have been correct to allow only users listed in the admin_users parameter.

Why it matters now

Exploitation None reported CISA SSVC · not in CISA KEV
EPSS 0.00287 21st percentileScored 2026-11-07
Fix Fixed PgBouncer: 1.25.2

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
None
Automatable
No
Technical impact
Partial

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
—PgBouncerbefore 1.25.21.25.2Patch availableCNA
  • PgBouncer Vendor— Affected before 1.25.2 Fixed in 1.25.2 Patch available CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:pgbouncer:pgbouncer:*:*:*:*:*:*:*:*before 1.25.2VulnerablePgbouncer
  • cpe:2.3:a:pgbouncer:pgbouncer:*:*:*:*:*:*:*:* Versions before 1.25.2 Vulnerable ·Pgbouncer

Remediation

  • Fix · CNA PgBouncer Fixed in 1.25.2

Fixed in the same release

Records fixed by the same vendor advisory or release, as the CNA lists them.

  • Release ·

    PgBouncer 1.25.2

    4 records Highest priority Priority MEDIUM 1 MEDIUM, 3 LOW

    Other records, highest priority first

    • TI-2026-05848 PgBouncer buffer overflow in SCRAMPriority MEDIUM 43
    • TI-2026-05847 PgBouncer integer overflow in PgBouncer network packet parsingPriority LOW 34
    • TI-2026-05849 PgBouncer crash in kill_pool_logins_server_errorPriority LOW 33
    Show all 4 records →

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-2026-6667
  2. 2026-10-03 Alias added: GHSA-gc77-jrv9-6fjp

References

Other 1

  • 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-2015-03418 PgBouncer before 1.5.5 allows remote attackers to cause a denial of service (NULL pointer… CVSS 3.0HIGH 7.5
  • 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
See all 9 →

Sources

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