CVE-2026-10592

EUVD-2026-39549
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.
ProviderTypeBase ScoreAtk. VectorAtk. ComplexityPriv. RequiredVector
NISTPrimary
5.3 MEDIUM
NETWORK
LOW
NONE
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N
Base Score
CVSS 3.x
EPSS Score
Percentile: 2.5%
Affected Products (NVD)
VendorProductVersion
wolfsslwolfssl
3.9.10 ≤
𝑥
< 5.9.2
𝑥
= Vulnerable software versions
Debian logo
Debian Releases
Debian Product
Codename
wolfssl
bookworm
vulnerable
bookworm (security)
vulnerable
bullseye
postponed
sid
5.9.2-1
fixed
trixie
no-dsa
Ubuntu logo
Ubuntu Releases
Ubuntu Product
Codename
wolfssl
bionic
needs-triage
focal
needs-triage
jammy
needs-triage
noble
needs-triage
questing
ignored
resolute
needs-triage
Common Weakness Enumeration
References
https://github.com/wolfSSL/wolfssl/pull/10549
https://www.wolfssl.com/docs/security-vulnerabilities/