Medium
pgbouncer — security advisory
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.
- Products
- pgbouncer
- Affected versions
- 1.10.0-1, 1.10.0-1build1, 1.11.0-1, 1.12.0-2, 1.12.0-3, 1.15.0-1, 1.16.1-1ubuntu1, 1.20.0-1, 1.21.0-1, 1.22.0-1, 1.22.0-1build1, 1.22.0-1build3, 1.22.0-1build4, 1.24.0-3, 1.24.1-1, 1.25.0-2, 1.25.1-1, 1.25.2-1, 1.25.2-1ubuntu1, 1.5.5-1, 1.6.1-1, 1.7-1, 1.7.2-3build1, 1.7.2-65-g2b8e6cf-1, 1.8.1-1, 1.8.1-1build1
- Fixed versions
- Not specified
- CVEs
- CVE-2026-6667
- Confirmed fixed CVEs
- Not specified
- Updated in this feed
- 31 Oct 2026, 03:13 UTC · Revision 1
Source evidence
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.
osv:UBUNTU-CVE-2026-6667
pgbouncer
Fixed versions: Not specified
pgbouncer
Fixed versions: Not specified
pgbouncer
Fixed versions: Not specified
pgbouncer
Fixed versions: Not specified
pgbouncer
Fixed versions: Not specified
pgbouncer
Fixed versions: Not specified
pgbouncer
Fixed versions: Not specified
pgbouncer
Fixed versions: Not specified
Complete source record
{
"id": "fd265e3b0ed54ef4712967f64c994331a4aab0b5ee38524aa3df08be6248cd42",
"url": "https://osv.dev/vulnerability/UBUNTU-CVE-2026-6667",
"method": "structured",
"payload": {
"kind": "advisory",
"title": "UBUNTU-CVE-2026-6667",
"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.",
"evidence": "osv:UBUNTU-CVE-2026-6667",
"products": [
{
"name": {
"value": "pgbouncer",
"evidence": "/affected/0/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "1.5.5-1",
"evidence": "/affected/0/versions"
},
{
"value": "1.6.1-1",
"evidence": "/affected/0/versions"
},
{
"value": "1.7-1",
"evidence": "/affected/0/versions"
}
]
},
{
"name": {
"value": "pgbouncer",
"evidence": "/affected/1/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "1.7.2-3build1",
"evidence": "/affected/1/versions"
},
{
"value": "1.7.2-65-g2b8e6cf-1",
"evidence": "/affected/1/versions"
},
{
"value": "1.8.1-1",
"evidence": "/affected/1/versions"
},
{
"value": "1.8.1-1build1",
"evidence": "/affected/1/versions"
}
]
},
{
"name": {
"value": "pgbouncer",
"evidence": "/affected/2/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "1.10.0-1",
"evidence": "/affected/2/versions"
},
{
"value": "1.10.0-1build1",
"evidence": "/affected/2/versions"
},
{
"value": "1.11.0-1",
"evidence": "/affected/2/versions"
},
{
"value": "1.12.0-2",
"evidence": "/affected/2/versions"
},
{
"value": "1.12.0-3",
"evidence": "/affected/2/versions"
}
]
},
{
"name": {
"value": "pgbouncer",
"evidence": "/affected/3/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "1.15.0-1",
"evidence": "/affected/3/versions"
},
{
"value": "1.16.1-1ubuntu1",
"evidence": "/affected/3/versions"
}
]
},
{
"name": {
"value": "pgbouncer",
"evidence": "/affected/4/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "1.20.0-1",
"evidence": "/affected/4/versions"
},
{
"value": "1.21.0-1",
"evidence": "/affected/4/versions"
},
{
"value": "1.22.0-1",
"evidence": "/affected/4/versions"
},
{
"value": "1.22.0-1build1",
"evidence": "/affected/4/versions"
},
{
"value": "1.22.0-1build3",
"evidence": "/affected/4/versions"
},
{
"value": "1.22.0-1build4",
"evidence": "/affected/4/versions"
}
]
},
{
"name": {
"value": "pgbouncer",
"evidence": "/affected/5/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "1.24.0-3",
"evidence": "/affected/5/versions"
},
{
"value": "1.24.1-1",
"evidence": "/affected/5/versions"
}
]
},
{
"name": {
"value": "pgbouncer",
"evidence": "/affected/6/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "1.25.1-1",
"evidence": "/affected/6/versions"
},
{
"value": "1.25.2-1",
"evidence": "/affected/6/versions"
},
{
"value": "1.25.2-1ubuntu1",
"evidence": "/affected/6/versions"
}
]
},
{
"name": {
"value": "pgbouncer",
"evidence": "/affected/7/package/name"
},
"prerequisites": [],
"fixed_versions": [],
"affected_versions": [
{
"value": "1.24.1-1",
"evidence": "/affected/7/versions"
},
{
"value": "1.25.0-2",
"evidence": "/affected/7/versions"
},
{
"value": "1.25.1-1",
"evidence": "/affected/7/versions"
}
]
}
],
"severity": "medium",
"structured": {
"id": "UBUNTU-CVE-2026-6667",
"aliases": [
"UBUNTU-CVE-2026-6667"
],
"metrics": [
{
"type": "CVSS_V3",
"score": "CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:N/I:N/A:L"
},
{
"type": "Ubuntu",
"score": "medium"
}
],
"affected": [
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "pgbouncer",
"purl": "pkg:deb/ubuntu/pgbouncer?arch=source&distro=xenial",
"ecosystem": "Ubuntu:16.04:LTS"
},
"versions": [
"1.5.5-1",
"1.6.1-1",
"1.7-1"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-6667.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "pgbouncer",
"binary_version": "1.7-1"
}
]
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "pgbouncer",
"purl": "pkg:deb/ubuntu/pgbouncer?arch=source&distro=bionic",
"ecosystem": "Ubuntu:18.04:LTS"
},
"versions": [
"1.7.2-3build1",
"1.7.2-65-g2b8e6cf-1",
"1.8.1-1",
"1.8.1-1build1"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-6667.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "pgbouncer",
"binary_version": "1.8.1-1build1"
}
]
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "pgbouncer",
"purl": "pkg:deb/ubuntu/pgbouncer?arch=source&distro=focal",
"ecosystem": "Ubuntu:20.04:LTS"
},
"versions": [
"1.10.0-1",
"1.10.0-1build1",
"1.11.0-1",
"1.12.0-2",
"1.12.0-3"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-6667.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "pgbouncer",
"binary_version": "1.12.0-3"
}
]
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "pgbouncer",
"purl": "pkg:deb/ubuntu/pgbouncer?arch=source&distro=jammy",
"ecosystem": "Ubuntu:22.04:LTS"
},
"versions": [
"1.15.0-1",
"1.16.1-1ubuntu1"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-6667.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "pgbouncer",
"binary_version": "1.16.1-1ubuntu1"
}
]
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "pgbouncer",
"purl": "pkg:deb/ubuntu/pgbouncer?arch=source&distro=noble",
"ecosystem": "Ubuntu:24.04:LTS"
},
"versions": [
"1.20.0-1",
"1.21.0-1",
"1.22.0-1",
"1.22.0-1build1",
"1.22.0-1build3",
"1.22.0-1build4"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-6667.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "pgbouncer",
"binary_version": "1.22.0-1build4"
}
]
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "pgbouncer",
"purl": "pkg:deb/ubuntu/pgbouncer?arch=source&distro=questing",
"ecosystem": "Ubuntu:25.10"
},
"versions": [
"1.24.0-3",
"1.24.1-1"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-6667.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "pgbouncer",
"binary_version": "1.24.1-1"
}
]
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "pgbouncer",
"purl": "pkg:deb/ubuntu/pgbouncer?arch=source&distro=stonking",
"ecosystem": "Ubuntu:26.10"
},
"versions": [
"1.25.1-1",
"1.25.2-1",
"1.25.2-1ubuntu1"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-6667.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "pgbouncer",
"binary_version": "1.25.2-1ubuntu1"
}
]
}
},
{
"ranges": [
{
"type": "ECOSYSTEM",
"events": [
{
"introduced": "0"
}
]
}
],
"package": {
"name": "pgbouncer",
"purl": "pkg:deb/ubuntu/pgbouncer?arch=source&distro=resolute",
"ecosystem": "Ubuntu:26.04:LTS"
},
"versions": [
"1.24.1-1",
"1.25.0-2",
"1.25.1-1"
],
"database_specific": {
"source": "https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-6667.json"
},
"ecosystem_specific": {
"binaries": [
{
"binary_name": "pgbouncer",
"binary_version": "1.25.1-1"
}
]
}
}
],
"modified": "2026-10-17T13:00:34.950318432Z",
"provider": "osv",
"upstream": [
"CVE-2026-6667"
],
"references": [
"https://ubuntu.com/security/CVE-2026-6667",
"https://www.cve.org/CVERecord?id=CVE-2026-6667",
"https://www.pgbouncer.org/changelog.html#pgbouncer-125x"
]
},
"related_cves": [
{
"value": "CVE-2026-6667",
"evidence": "/upstream"
}
],
"security_relevant": true,
"severity_evidence": "/severity/0/score"
},
"source_id": "core-osv",
"document_id": 360711,
"published_at": "2026-05-09T01:16:00+00:00"
}