Wildcard DNS SAN bypasses CA name-constraint checks_CVE-2026-10592

6.3 / 10

MEDIUM

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

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.

Basic Information

ID CVE-2026-10592

Source wolfSSL

Published Jun 25, 2026 at 19:40

Affected Product

Vendor wolfSSL

Product wolfSSL

Version 3.9.10

Affected Versions wolfSSL wolfSSL 3.9.10

CWE Classification

CWE-295

References

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    "lastseen": "",
    "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.",
    "published": "2026-06-25T19:40:11.966Z",
    "modified": "2026-06-25T19:40:11.966Z",
    "type": "cve",
    "title": "Wildcard DNS SAN bypasses CA name-constraint checks",
    "source": "wolfSSL",
    "references": "https://github.com/wolfSSL/wolfssl/pull/10549\nhttps://www.wolfssl.com/docs/security-vulnerabilities/",
    "id": "CVE-2026-10592",
    "bulletinFamily": "",
    "cwe": [
        "CWE-295"
    ],
    "cvelist": null,
    "sourceData": "wolfSSL wolfSSL 3.9.10",
    "sourceHref": "",
    "cvss": {
        "score": 6.3,
        "severity": "MEDIUM",
        "vector": "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",
        "version": "4.0"
    },
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        "cvssV3": {
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    "href": "",
    "category_name": "CVE",
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    "product": "wolfSSL",
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    "ai_description": "",
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    "ai_score": 0
}