UBUNTU-CVE-2026-14681

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Source

https://ubuntu.com/security/CVE-2026-14681

Import Source

https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-14681.json

JSON Data

https://api.test.osv.dev/v1/vulns/UBUNTU-CVE-2026-14681

Upstream

CVE-2026-14681

Downstream

USN-8653-1

Related

USN-8653-1

Published

2026-08-13T13:17:00Z

Modified

2026-09-02T19:39:46Z

Severity

4.2 (Medium) CVSS_V3 - CVSS:3.1/AV:N/AC:H/PR:L/UI:N/S:U/C:L/I:L/A:N CVSS Calculator
Ubuntu - medium

Summary

[none]

Details

Improper enforcement of message integrity in PostgreSQL GSSAPI support allows a user to negotiate GSSAPI contrary to pg_hba.conf rules, via initial direct TLS connection. Despite a pg_hba.conf that appears to require GSSAPI, the connection may exchange data over TLS encryption alone. If the TLS settings are more permissive than the GSS settings, the connection may continue with lesser protection. Within major versions 17-18, minor versions before PostgreSQL 18.6 and 17.11 are affected. Versions before PostgreSQL 17 are unaffected.

References

Affected packages

Ubuntu:Pro:14.04:LTS / postgresql-9.3

Package

Name: postgresql-9.3
Purl: pkg:deb/ubuntu/postgresql-9.3?arch=source&distro=esm-infra-legacy%2Ftrusty

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0 Unknown introduced version / All previous versions are affected

Affected versions

9.*

9.3.1-1

9.3.2-1

9.3.2-1ubuntu1

9.3.2-1ubuntu2

9.3.3-1

9.3.3-1bzr1

9.3.3-1bzr2

9.3.4-1

9.3.5-0ubuntu0.14.04.1

9.3.6-0ubuntu0.14.04

9.3.7-0ubuntu0.14.04

9.3.8-0ubuntu0.4.04

9.3.9-0ubuntu0.14.04

9.3.10-0ubuntu0.14.04

9.3.11-0ubuntu0.14.04

9.3.12-0ubuntu0.14.04

9.3.13-0ubuntu0.14.04

9.3.14-0ubuntu0.14.04

9.3.15-0ubuntu0.14.04

9.3.16-0ubuntu0.14.04

9.3.17-0ubuntu0.14.04

9.3.18-0ubuntu0.14.04.1

9.3.19-0ubuntu0.14.04

9.3.20-0ubuntu0.14.04

9.3.21-0ubuntu0.14.04

9.3.22-0ubuntu0.14.04

9.3.23-0ubuntu0.14.04

9.3.24-0ubuntu0.14.04

9.3.24-0ubuntu0.14.04+esm1

Ecosystem specific

{
    "binaries": [
        {
            "binary_name": "libecpg-compat3",
            "binary_version": "9.3.24-0ubuntu0.14.04+esm1"
        },
        {
            "binary_name": "libecpg6",
            "binary_version": "9.3.24-0ubuntu0.14.04+esm1"
        },
        {
            "binary_name": "libpgtypes3",
            "binary_version": "9.3.24-0ubuntu0.14.04+esm1"
        },
        {
            "binary_name": "libpq5",
            "binary_version": "9.3.24-0ubuntu0.14.04+esm1"
        },
        {
            "binary_name": "postgresql-9.3",
            "binary_version": "9.3.24-0ubuntu0.14.04+esm1"
        },
        {
            "binary_name": "postgresql-client-9.3",
            "binary_version": "9.3.24-0ubuntu0.14.04+esm1"
        },
        {
            "binary_name": "postgresql-contrib-9.3",
            "binary_version": "9.3.24-0ubuntu0.14.04+esm1"
        },
        {
            "binary_name": "postgresql-doc-9.3",
            "binary_version": "9.3.24-0ubuntu0.14.04+esm1"
        },
        {
            "binary_name": "postgresql-plperl-9.3",
            "binary_version": "9.3.24-0ubuntu0.14.04+esm1"
        },
        {
            "binary_name": "postgresql-plpython-9.3",
            "binary_version": "9.3.24-0ubuntu0.14.04+esm1"
        },
        {
            "binary_name": "postgresql-plpython3-9.3",
            "binary_version": "9.3.24-0ubuntu0.14.04+esm1"
        },
        {
            "binary_name": "postgresql-pltcl-9.3",
            "binary_version": "9.3.24-0ubuntu0.14.04+esm1"
        },
        {
            "binary_name": "postgresql-server-dev-9.3",
            "binary_version": "9.3.24-0ubuntu0.14.04+esm1"
        }
    ]
}

Database specific

source

"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-14681.json"

Ubuntu:26.04:LTS / postgresql-18

Package

Name: postgresql-18
Purl: pkg:deb/ubuntu/postgresql-18?arch=source&distro=resolute

Affected ranges

Type: ECOSYSTEM
Events: Introduced

0 Unknown introduced version / All previous versions are affected

Fixed

18.6-0ubuntu0.26.04.1

Affected versions

18.*

18.0-1

18.1-1

18.1-1ubuntu1

18.1-1ubuntu2

18.1-2

18.3-1

18.4-0ubuntu0.26.04.1

Ecosystem specific

{
    "availability": "No subscription required",
    "binaries": [
        {
            "binary_name": "libecpg-compat3",
            "binary_version": "18.6-0ubuntu0.26.04.1"
        },
        {
            "binary_name": "libecpg6",
            "binary_version": "18.6-0ubuntu0.26.04.1"
        },
        {
            "binary_name": "libpgtypes3",
            "binary_version": "18.6-0ubuntu0.26.04.1"
        },
        {
            "binary_name": "libpq-oauth",
            "binary_version": "18.6-0ubuntu0.26.04.1"
        },
        {
            "binary_name": "libpq5",
            "binary_version": "18.6-0ubuntu0.26.04.1"
        },
        {
            "binary_name": "postgresql-18",
            "binary_version": "18.6-0ubuntu0.26.04.1"
        },
        {
            "binary_name": "postgresql-18-jit",
            "binary_version": "18.6-0ubuntu0.26.04.1"
        },
        {
            "binary_name": "postgresql-client-18",
            "binary_version": "18.6-0ubuntu0.26.04.1"
        },
        {
            "binary_name": "postgresql-doc-18",
            "binary_version": "18.6-0ubuntu0.26.04.1"
        },
        {
            "binary_name": "postgresql-plperl-18",
            "binary_version": "18.6-0ubuntu0.26.04.1"
        },
        {
            "binary_name": "postgresql-plpython3-18",
            "binary_version": "18.6-0ubuntu0.26.04.1"
        },
        {
            "binary_name": "postgresql-pltcl-18",
            "binary_version": "18.6-0ubuntu0.26.04.1"
        },
        {
            "binary_name": "postgresql-server-dev-18",
            "binary_version": "18.6-0ubuntu0.26.04.1"
        }
    ]
}

Database specific

source

"https://github.com/canonical/ubuntu-security-notices/blob/main/osv/cve/2026/UBUNTU-CVE-2026-14681.json"