DEBIAN-CVE-2026-107349

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Source
https://security-tracker.debian.org/tracker/CVE-2026-107349
Import Source
https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-107349.json
JSON Data
https://api.osv.dev/v1/vulns/DEBIAN-CVE-2026-107349
Upstream
  • CVE-2026-107349
Published
2026-10-14T18:17:25Z
Modified
2026-10-23T17:47:33Z
Severity
  • 7.5 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H CVSS Calculator
Summary
[none]
Details

An infinite loop in PgBouncer 1.20.0 through 1.26.0 allows an unauthenticated remote attacker to cause a denial of service. A StartupMessage whose options parameter contains an empty parameter name, such as "-c=", makes the ignore_startup_parameters list lookup loop forever. Because PgBouncer serves all clients from a single process, this saturates a CPU core and makes PgBouncer unresponsive to all clients until the process is restarted.

References

Affected packages

Debian:12 / pgbouncer

Package

Name
pgbouncer
Purl
pkg:deb/debian/pgbouncer?arch=source&distro=bookworm

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected

Affected versions

1.*
1.18.0-1
1.18.0-1+deb12u1
1.19.0-1
1.19.1-1
1.20.0-1
1.20.1-1
1.21.0-1
1.22.0-1
1.22.1-1
1.23.0-1
1.23.1-1
1.24.0-2
1.24.0-3
1.24.1-1
1.25.0-1
1.25.0-2
1.25.1-1
1.25.2-1
1.26.0-1
1.26.0-2
1.26.0-3
1.26.0-4
1.26.0-5
1.26.0-6
1.26.1-1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-107349.json"

Debian:13 / pgbouncer

Package

Name
pgbouncer
Purl
pkg:deb/debian/pgbouncer?arch=source&distro=trixie

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected

Affected versions

1.*
1.24.1-1
1.24.1-1+deb13u1
1.24.1-1+deb13u2
1.25.0-1
1.25.0-2
1.25.1-1
1.25.2-1
1.26.0-1
1.26.0-2
1.26.0-3
1.26.0-4
1.26.0-5
1.26.0-6
1.26.1-1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-107349.json"

Debian:14 / pgbouncer

Package

Name
pgbouncer
Purl
pkg:deb/debian/pgbouncer?arch=source&distro=forky

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
1.26.1-1

Affected versions

1.*
1.24.1-1
1.25.0-1
1.25.0-2
1.25.1-1
1.25.2-1
1.26.0-1
1.26.0-2
1.26.0-3
1.26.0-4
1.26.0-5
1.26.0-6

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-107349.json"