DEBIAN-CVE-2026-107350

Source
https://security-tracker.debian.org/tracker/CVE-2026-107350
Import Source
https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-107350.json
JSON Data
https://api.osv.dev/v1/vulns/DEBIAN-CVE-2026-107350
Upstream
  • CVE-2026-107350
Published
2026-10-14T18:17:25Z
Modified
2026-10-23T17:47:51Z
Severity
  • 8.8 (High) CVSS_V3 - CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:U/C:H/I:H/A:H CVSS Calculator
Summary
[none]
Details

Improper authentication in PgBouncer 1.17.0 through 1.26.0 allows a remote attacker who knows the password of a user listed in auth_file to log in as any other user that authenticates using SCRAM, including PgBouncer admin users and backend superusers. A second StartupMessage sent during SCRAM authentication against a non-existent database is not rejected and switches the user being logged in as, while the SCRAM exchange is still verified against the keys of the first user.

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-2026-107350.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-2026-107350.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-2026-107350.json"