DEBIAN-CVE-2026-6637

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Source
https://security-tracker.debian.org/tracker/CVE-2026-6637
Import Source
https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-6637.json
JSON Data
https://api.osv.dev/v1/vulns/DEBIAN-CVE-2026-6637
Upstream
  • CVE-2026-6637
Published
2026-05-14T14:16:25Z
Modified
2026-09-14T17:03:49Z
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

Stack buffer overflow in PostgreSQL module "refint" allows an unprivileged database user to execute arbitrary code as the operating system user running the database. A distinct attack is possible if the application declares a user-controlled column as a "refint" cascade primary key and facilitates user-controlled updates to that column. In that case, a SQL injection allows a primary key update value provider to execute arbitrary SQL as the database user performing the primary key update. Versions before PostgreSQL 18.4, 17.10, 16.14, 15.18, and 14.23 are affected.

References

Affected packages

Debian:12 / postgresql-15

Package

Name
postgresql-15
Purl
pkg:deb/debian/postgresql-15?arch=source&distro=bookworm

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
15.18-0+deb12u1

Affected versions

15.*
15.3-0+deb12u1
15.3-1
15.4-0+deb12u1
15.4-1
15.4-2
15.4-3
15.5-0+deb12u1
15.6-0+deb12u1
15.7-0+deb12u1
15.8-0+deb12u1
15.9-0+deb12u1
15.10-0+deb12u1
15.11-0+deb12u1
15.12-0+deb12u1
15.12-0+deb12u2
15.13-0+deb12u1
15.14-0+deb12u1
15.15-0+deb12u1
15.16-0+deb12u1
15.17-0+deb12u1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-6637.json"

Debian:13 / postgresql-17

Package

Name
postgresql-17
Purl
pkg:deb/debian/postgresql-17?arch=source&distro=trixie

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
17.10-0+deb13u1

Affected versions

17.*
17.5-1
17.6-0+deb13u1
17.6-1
17.7-0+deb13u1
17.8-0+deb13u1
17.9-0+deb13u1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-6637.json"

Debian:14 / postgresql-18

Package

Name
postgresql-18
Purl
pkg:deb/debian/postgresql-18?arch=source&distro=forky

Affected ranges

Type
ECOSYSTEM
Events
Introduced
0 Unknown introduced version / All previous versions are affected
Fixed
18.4-1

Affected versions

18~~devel.*
18~~devel.20250318+g4078da6c478-1
18~~devel.20250331-1
18~~devel.20250405-1
18~~devel.20250421-1
18~~devel.20250502-1
Other
18~beta1-1
18~beta1+20250612-1
18~beta1+20250624-1
18~beta1+20250701-1
18~beta2-1
18~beta3-1
18~rc1-1
18~rc1-2
18~rc1-3
18.*
18.0-1
18.1-1
18.1-2
18.2-1
18.3-1

Ecosystem specific 

{
    "urgency": "not yet assigned"
}

Database specific

source 
"https://storage.googleapis.com/debian-osv/debian-cve-osv/DEBIAN-CVE-2026-6637.json"