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CVE-2026-6731

MEDIUM
6.0
CVSS 4.0
Description
X.509 name constraint bypass via the Subject Common Name when treated as a DNS-type name. A certificate whose Subject CN violates an issuing CA's DNS name constraints could be accepted.

Metadata

CVE ID
CVE-2026-6731
State
PUBLISHED
Assigner
wolfSSL
Reserved
2026-04-20 21:59 UTC
Published
2026-06-25 20:08 UTC
Last updated
2026-06-25 20:08 UTC
Primary CWE
CWE-295
CWE-295 Improper Certificate Validation
Vendor / Product
wolfSSL / wolfSSL
Sources
cve.org  ·  NVD

Severity & Metrics

6.0 MEDIUM CVSS 4.0
CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N
Affected products (1)
VendorProductPlatformVersions
wolfSSL wolfSSL — 3.9.10 ≤ 5.9.1
Weakness (CWE)
CWESourceDescription
CWE-295 cna CWE-295 Improper Certificate Validation
CVSS scores (1)
ScoreSeverityVersionSourceVector
6.0 MEDIUM 4.0 cna CVSS:4.0/AV:N/AC:L/AT:P/PR:L/UI:N/VC:N/VI:H/VA:N/SC:N/SI:N/SA:N
References (2)
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