ubuntu-cve-2026-6666
Vulnerability from osv_ubuntu
Published
2026-05-09 01:16
Modified
2026-05-20 15:24
Summary
Details
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.
Severity
5.9 (Medium)
7.5 (High)
N/A (UNKNOWN)
References
{
"affected": [
{
"ecosystem_specific": {
"binaries": [
{
"binary_name": "pgbouncer",
"binary_version": "1.7-1"
}
]
},
"package": {
"ecosystem": "Ubuntu:16.04:LTS",
"name": "pgbouncer",
"purl": "pkg:deb/ubuntu/pgbouncer@1.7-1?arch=source\u0026distro=xenial"
},
"ranges": [
{
"events": [
{
"introduced": "0"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"1.5.5-1",
"1.6.1-1",
"1.7-1"
]
},
{
"ecosystem_specific": {
"binaries": [
{
"binary_name": "pgbouncer",
"binary_version": "1.8.1-1build1"
}
]
},
"package": {
"ecosystem": "Ubuntu:18.04:LTS",
"name": "pgbouncer",
"purl": "pkg:deb/ubuntu/pgbouncer@1.8.1-1build1?arch=source\u0026distro=bionic"
},
"ranges": [
{
"events": [
{
"introduced": "0"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"1.7.2-3build1",
"1.7.2-65-g2b8e6cf-1",
"1.8.1-1",
"1.8.1-1build1"
]
},
{
"ecosystem_specific": {
"binaries": [
{
"binary_name": "pgbouncer",
"binary_version": "1.12.0-3"
}
]
},
"package": {
"ecosystem": "Ubuntu:20.04:LTS",
"name": "pgbouncer",
"purl": "pkg:deb/ubuntu/pgbouncer@1.12.0-3?arch=source\u0026distro=focal"
},
"ranges": [
{
"events": [
{
"introduced": "0"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"1.10.0-1",
"1.10.0-1build1",
"1.11.0-1",
"1.12.0-2",
"1.12.0-3"
]
},
{
"ecosystem_specific": {
"binaries": [
{
"binary_name": "pgbouncer",
"binary_version": "1.16.1-1ubuntu1"
}
]
},
"package": {
"ecosystem": "Ubuntu:22.04:LTS",
"name": "pgbouncer",
"purl": "pkg:deb/ubuntu/pgbouncer@1.16.1-1ubuntu1?arch=source\u0026distro=jammy"
},
"ranges": [
{
"events": [
{
"introduced": "0"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"1.15.0-1",
"1.16.1-1ubuntu1"
]
},
{
"ecosystem_specific": {
"binaries": [
{
"binary_name": "pgbouncer",
"binary_version": "1.22.0-1build4"
}
]
},
"package": {
"ecosystem": "Ubuntu:24.04:LTS",
"name": "pgbouncer",
"purl": "pkg:deb/ubuntu/pgbouncer@1.22.0-1build4?arch=source\u0026distro=noble"
},
"ranges": [
{
"events": [
{
"introduced": "0"
}
],
"type": "ECOSYSTEM"
}
],
"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"
]
},
{
"ecosystem_specific": {
"binaries": [
{
"binary_name": "pgbouncer",
"binary_version": "1.24.1-1"
}
]
},
"package": {
"ecosystem": "Ubuntu:25.10",
"name": "pgbouncer",
"purl": "pkg:deb/ubuntu/pgbouncer@1.24.1-1?arch=source\u0026distro=questing"
},
"ranges": [
{
"events": [
{
"introduced": "0"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"1.24.0-3",
"1.24.1-1"
]
},
{
"ecosystem_specific": {
"binaries": [
{
"binary_name": "pgbouncer",
"binary_version": "1.25.1-1"
}
]
},
"package": {
"ecosystem": "Ubuntu:26.04:LTS",
"name": "pgbouncer",
"purl": "pkg:deb/ubuntu/pgbouncer@1.25.1-1?arch=source\u0026distro=resolute"
},
"ranges": [
{
"events": [
{
"introduced": "0"
}
],
"type": "ECOSYSTEM"
}
],
"versions": [
"1.24.1-1",
"1.25.0-2",
"1.25.1-1"
]
}
],
"aliases": [],
"details": "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.",
"id": "UBUNTU-CVE-2026-6666",
"modified": "2026-05-20T15:24:33Z",
"published": "2026-05-09T01:16:00Z",
"references": [
{
"type": "REPORT",
"url": "https://ubuntu.com/security/CVE-2026-6666"
},
{
"type": "REPORT",
"url": "https://www.cve.org/CVERecord?id=CVE-2026-6666"
},
{
"type": "REPORT",
"url": "https://www.pgbouncer.org/changelog.html#pgbouncer-125x"
}
],
"related": [],
"schema_version": "1.7.0",
"severity": [
{
"score": "CVSS:3.1/AV:N/AC:H/PR:N/UI:N/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
},
{
"score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
"type": "CVSS_V3"
},
{
"score": "medium",
"type": "Ubuntu"
}
],
"upstream": [
"CVE-2026-6666"
]
}
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Forecast uses a logistic model when the trend is rising, or an exponential decay model when the trend is falling. Fitted via linearized least squares.
Sightings
| Author | Source | Type | Date | Other |
|---|
Nomenclature
- Seen: The vulnerability was mentioned, discussed, or observed by the user.
- Confirmed: The vulnerability has been validated from an analyst's perspective.
- Published Proof of Concept: A public proof of concept is available for this vulnerability.
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- Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
- Not confirmed: The user expressed doubt about the validity of the vulnerability.
- Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.
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