Vulnerability-Lookup

GHSA-M8R2-QGR6-4GQM

Vulnerability from github – Published: 2026-06-25 21:31 – Updated: 2026-06-26 21:32

Details

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.

Severity

5.3 (Medium)


                  
                    CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N

6.3 (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

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JSON

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{
  "affected": [],
  "aliases": [
    "CVE-2026-10592"
  ],
  "database_specific": {
    "cwe_ids": [
      "CWE-295"
    ],
    "github_reviewed": false,
    "github_reviewed_at": null,
    "nvd_published_at": "2026-06-25T20:17:09Z",
    "severity": "MODERATE"
  },
  "details": "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\u0027s permitted/excluded DNS name constraints could be accepted.",
  "id": "GHSA-m8r2-qgr6-4gqm",
  "modified": "2026-06-26T21:32:11Z",
  "published": "2026-06-25T21:31:31Z",
  "references": [
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-10592"
    },
    {
      "type": "WEB",
      "url": "https://github.com/wolfSSL/wolfssl/pull/10549"
    },
    {
      "type": "WEB",
      "url": "https://www.wolfssl.com/docs/security-vulnerabilities"
    }
  ],
  "schema_version": "1.4.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:L/A:N",
      "type": "CVSS_V3"
    },
    {
      "score": "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/E:X/CR:X/IR:X/AR:X/MAV:X/MAC:X/MAT:X/MPR:X/MUI:X/MVC:X/MVI:X/MVA:X/MSC:X/MSI:X/MSA:X/S:X/AU:X/R:X/V:X/RE:X/U:X",
      "type": "CVSS_V4"
    }
  ]
}

CVE-2026-10592 (GCVE-0-2026-10592)

Vulnerability from cvelistv5 – Published: 2026-06-25 19:40 – Updated: 2026-06-26 14:03

Title

Wildcard DNS SAN bypasses CA name-constraint checks

Summary

Severity

6.3 (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

SSVC

Exploitation: none Automatable: no Technical Impact: partial

CISA Coordinator (v2.0.3)

CWE

CWE-295 - Improper Certificate Validation

Assigner

wolfSSL

References

2 references

URL	Tags
https://github.com/wolfSSL/wolfssl/pull/10549	patch
https://www.wolfssl.com/docs/security-vulnerabilities/

Impacted products

1 product

Vendor	Product	Version
wolfSSL	wolfSSL	Affected: 3.9.10 , ≤ 5.9.1 (semver)

Credits

tonghuaroot

Show details on NVD website

JSON

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  "containers": {
    "adp": [
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        "metrics": [
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            "other": {
              "content": {
                "id": "CVE-2026-10592",
                "options": [
                  {
                    "Exploitation": "none"
                  },
                  {
                    "Automatable": "no"
                  },
                  {
                    "Technical Impact": "partial"
                  }
                ],
                "role": "CISA Coordinator",
                "timestamp": "2026-06-26T14:03:09.936384Z",
                "version": "2.0.3"
              },
              "type": "ssvc"
            }
          }
        ],
        "providerMetadata": {
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          "orgId": "134c704f-9b21-4f2e-91b3-4a467353bcc0",
          "shortName": "CISA-ADP"
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        }
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            }
          ],
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      ],
      "metrics": [
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            "Automatable": "NOT_DEFINED",
            "Recovery": "NOT_DEFINED",
            "Safety": "NOT_DEFINED",
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            "version": "4.0",
            "vulnAvailabilityImpact": "NONE",
            "vulnConfidentialityImpact": "NONE",
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            "vulnerabilityResponseEffort": "NOT_DEFINED"
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          "tags": [
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          "url": "https://github.com/wolfSSL/wolfssl/pull/10549"
        },
        {
          "url": "https://www.wolfssl.com/docs/security-vulnerabilities/"
        }
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      "source": {
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    "datePublished": "2026-06-25T19:40:11.966Z",
    "dateReserved": "2026-06-01T21:10:33.519Z",
    "dateUpdated": "2026-06-26T14:03:28.814Z",
    "state": "PUBLISHED"
  },
  "dataType": "CVE_RECORD",
  "dataVersion": "5.2"
}

Sightings

Author	Source	Type	Date	Other

Nomenclature

Seen: The vulnerability was mentioned, discussed, or observed by the user.
Confirmed: The vulnerability has been validated from an analyst's perspective.
Published Proof of Concept: A public proof of concept is available for this vulnerability.
Exploited: The vulnerability was observed as exploited by the user who reported the sighting.
Patched: The vulnerability was observed as successfully patched by the user who reported the sighting.
Not exploited: The vulnerability was not observed as exploited by the user who reported the sighting.
Not confirmed: The user expressed doubt about the validity of the vulnerability.
Not patched: The vulnerability was not observed as successfully patched by the user who reported the sighting.

Detection rules are retrieved from Rulezet.

Action not permitted

GHSA-M8R2-QGR6-4GQM

CVE-2026-10592 (GCVE-0-2026-10592)

Tags

Sightings

Nomenclature