Description
In phpseclib before 1.0.22, 2.x before 2.0.46, and 3.x before 3.0.33, some characters in Subject Alternative Name fields in TLS certificates are incorrectly allowed to have a special meaning in regular expressions (such as a + wildcard), leading to name confusion in X.509 certificate host verification.
Published: 2024-06-27
Score: 7.5 High
EPSS: < 1% Very Low
KEV: No
Impact: n/a
Action: n/a
AI Analysis

No analysis available yet.

Remediation

No remediation available yet.

Tracking

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Advisories
Source ID Title
Debian DLA Debian DLA DLA-4518-1 phpseclib security update
Debian DSA Debian DSA DSA-6185-1 phpseclib security update
Debian DSA Debian DSA DSA-6186-1 php-phpseclib security update
Debian DSA Debian DSA DSA-6187-1 php-phpseclib3 security update
Github GHSA Github GHSA GHSA-ff7q-6vwh-v9m4 Name confusion in x509 Subject Alternative Name fields
Ubuntu USN Ubuntu USN USN-7404-1 phpseclib vulnerabilities
History

Thu, 26 Feb 2026 19:15:00 +0000

Type Values Removed Values Added
Metrics ssvc

{'options': {'Automatable': 'yes', 'Exploitation': 'none', 'Technical Impact': 'total'}, 'version': '2.0.3'}


Wed, 22 Oct 2025 20:45:00 +0000

Type Values Removed Values Added
CPEs cpe:2.3:a:phpseclib:phpseclib:*:*:*:*:*:*:*:*

Wed, 16 Jul 2025 13:45:00 +0000

Type Values Removed Values Added
Metrics epss

{'score': 0.00154}

epss

{'score': 0.00125}


Wed, 21 Aug 2024 21:00:00 +0000

Type Values Removed Values Added
Weaknesses CWE-436
Metrics cvssV3_1

{'score': 7.5, 'vector': 'CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:N/A:N'}


Subscriptions

Phpseclib Phpseclib
cve-icon MITRE

Status: PUBLISHED

Assigner: mitre

Published:

Updated: 2024-08-21T20:02:23.834Z

Reserved: 2024-06-27T00:00:00.000Z

Link: CVE-2023-52892

cve-icon Vulnrichment

Updated: 2024-08-02T23:18:41.296Z

cve-icon NVD

Status : Analyzed

Published: 2024-06-27T22:15:10.277

Modified: 2025-10-22T20:40:45.620

Link: CVE-2023-52892

cve-icon Redhat

No data.

cve-icon OpenCVE Enrichment

Updated: 2025-07-12T22:44:30Z

Weaknesses