CVE-2026-10592 | Certificates with wildcard DNS SANs (e.g. *.example.com) byp… | CVSS 6.3 MEDIUM

Description

Certificates with wildcard DNS SANs (e.g. *.example.com) bypassed CA name-constraint checks. A certificate with a wildcard DNS SAN that should be rejected by the issuing CA's permitted/excluded DNS name constraints could be accepted.

Metadata

CVE ID: CVE-2026-10592
State: PUBLISHED
Assigner: wolfSSL
Reserved: 2026-06-01 21:10 UTC
Published: 2026-06-25 19:40 UTC
Last updated: 2026-06-25 19:40 UTC
Primary CWE: CWE-295
CWE-295 Improper Certificate Validation
Vendor / Product: wolfSSL / wolfSSL
Sources: cve.org · NVD

Severity & Metrics

6.3 MEDIUM CVSS 4.0

CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N

Affected products (1)

Vendor	Product	Platform	Versions
wolfSSL	wolfSSL	—	3.9.10 ≤ 5.9.1

Weakness (CWE)

CWE	Source	Description
CWE-295	cna	CWE-295 Improper Certificate Validation

CVSS scores (1)

Score	Severity	Version	Source	Vector
6.3	MEDIUM	4.0	cna	CVSS:4.0/AV:N/AC:L/AT:P/PR:N/UI:N/VC:N/VI:L/VA:N/SC:N/SI:N/SA:N

References (2)