Description
A flaw was found in the temporary user record that authd uses in the pre-auth NSS. As a result, a user login for the first time will be considered to be part of the root group in the context of that SSH session.
Published: 2025-06-16
Score: 8.5 High
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

Analysis and contextual insights are available on OpenCVE Cloud.

Remediation

No vendor fix or workaround currently provided.

Additional remediation guidance may be available on OpenCVE Cloud.

Tracking

Sign in to view the affected projects.

Advisories
Source ID Title
EUVD EUVD EUVD-2025-18385 A flaw was found in the temporary user record that authd uses in the pre-auth NSS. As a result, a user login for the first time will be considered to be part of the root group in the context of that SSH session.
Github GHSA Github GHSA GHSA-g8qw-mgjx-rwjr New authd users logging in via SSH are members of the root group
History

Tue, 26 Aug 2025 16:15:00 +0000

Type Values Removed Values Added
First Time appeared Canonical
Canonical authd
CPEs cpe:2.3:a:canonical:authd:*:*:*:*:*:*:*:*
Vendors & Products Canonical
Canonical authd

Tue, 17 Jun 2025 18:15:00 +0000

Type Values Removed Values Added
Weaknesses CWE-269

Tue, 17 Jun 2025 15:00:00 +0000

Type Values Removed Values Added
Metrics cvssV3_1

{'score': 9.1, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:L/A:L'}

 cvssV3_1

{'score': 8.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:L/A:N'}

Tue, 17 Jun 2025 14:45:00 +0000

Type Values Removed Values Added
Metrics cvssV3_1

{'score': 6.4, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N'}

 cvssV3_1

{'score': 9.1, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:H/I:L/A:L'}

Mon, 16 Jun 2025 15:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'no', 'Exploitation': 'none', 'Technical Impact': 'partial'}, 'version': '2.0.3'}

Mon, 16 Jun 2025 11:45:00 +0000

Type Values Removed Values Added
Description A flaw was found in the temporary user record that authd uses in the pre-auth NSS. As a result, a user login for the first time will be considered to be part of the root group in the context of that SSH session.
Title Improper Permission Management in SSH Session Handling
References
Metrics cvssV3_1

{'score': 6.4, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:L/UI:N/S:C/C:L/I:L/A:N'}

Subscriptions

Canonical Authd
cve-icon MITRE

Status: PUBLISHED

Assigner: canonical

Published:

Updated: 2025-06-17T17:27:04.238Z

Reserved: 2025-06-04T17:12:16.505Z

Link: CVE-2025-5689

cve-icon Vulnrichment

Updated: 2025-06-16T14:31:18.283Z

cve-icon NVD

Status : Analyzed

Published: 2025-06-16T12:15:19.610

Modified: 2025-08-26T16:04:34.083

Link: CVE-2025-5689

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

No data.

Weaknesses