{
  "affected": [
    {
      "ranges": [
        {
          "database_specific": {
            "cpe": "cpe:2.3:a:golang:go:1.26.0:*:*:*:*:*:*:*",
            "extracted_events": [
              {
                "introduced": "1.26.0"
              },
              {
                "last_affected": "1.26.0"
              }
            ],
            "source": "CPE_STRING"
          },
          "events": [
            {
              "introduced": "d90b98e65320778f3b1f99a6951ab20f04d218b3"
            },
            {
              "last_affected": "d90b98e65320778f3b1f99a6951ab20f04d218b3"
            }
          ],
          "repo": "https://github.com/golang/go",
          "type": "GIT"
        }
      ],
      "versions": [
        "1.26.0"
      ]
    }
  ],
  "database_specific": {
    "cna_assigner": "Go",
    "osv_generated_from": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/27xxx/CVE-2026-27137.json",
    "unresolved_ranges": [
      {
        "extracted_events": [
          {
            "introduced": "1.26.0-0"
          },
          {
            "fixed": "1.26.1"
          }
        ],
        "source": "AFFECTED_FIELD"
      }
    ]
  },
  "details": "When verifying a certificate chain which contains a certificate containing multiple email address constraints which share common local portions but different domain portions, these constraints will not be properly applied, and only the last constraint will be considered.",
  "id": "CVE-2026-27137",
  "modified": "2026-07-24T03:57:06.505726823Z",
  "published": "2026-03-06T21:28:13.748Z",
  "references": [
    {
      "type": "WEB",
      "url": "https://go.dev/cl/752182"
    },
    {
      "type": "WEB",
      "url": "https://go.dev/issue/77952"
    },
    {
      "type": "WEB",
      "url": "https://groups.google.com/g/golang-announce/c/EdhZqrQ98hk"
    },
    {
      "type": "WEB",
      "url": "https://pkg.go.dev"
    },
    {
      "type": "WEB",
      "url": "https://pkg.go.dev/vuln/GO-2026-4599"
    },
    {
      "type": "WEB",
      "url": "https://security.access.redhat.com/data/csaf/v2/vex/2026/cve-2026-27137.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://access.redhat.com/errata/RHSA-2026:10125"
    },
    {
      "type": "ADVISORY",
      "url": "https://access.redhat.com/errata/RHSA-2026:10158"
    },
    {
      "type": "ADVISORY",
      "url": "https://access.redhat.com/errata/RHSA-2026:10169"
    },
    {
      "type": "ADVISORY",
      "url": "https://access.redhat.com/errata/RHSA-2026:10175"
    },
    {
      "type": "ADVISORY",
      "url": "https://access.redhat.com/errata/RHSA-2026:10184"
    },
    {
      "type": "ADVISORY",
      "url": "https://access.redhat.com/errata/RHSA-2026:10225"
    },
    {
      "type": "ADVISORY",
      "url": "https://access.redhat.com/errata/RHSA-2026:10250"
    },
    {
      "type": "ADVISORY",
      "url": "https://access.redhat.com/errata/RHSA-2026:10929"
    },
    {
      "type": "ADVISORY",
      "url": "https://access.redhat.com/errata/RHSA-2026:11800"
    },
    {
      "type": "ADVISORY",
      "url": "https://access.redhat.com/errata/RHSA-2026:13545"
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    {
      "type": "ADVISORY",
      "url": "https://access.redhat.com/errata/RHSA-2026:14879"
    },
    {
      "type": "ADVISORY",
      "url": "https://access.redhat.com/errata/RHSA-2026:19022"
    },
    {
      "type": "ADVISORY",
      "url": "https://access.redhat.com/errata/RHSA-2026:19049"
    },
    {
      "type": "ADVISORY",
      "url": "https://access.redhat.com/errata/RHSA-2026:19132"
    },
    {
      "type": "ADVISORY",
      "url": "https://access.redhat.com/errata/RHSA-2026:19181"
    },
    {
      "type": "ADVISORY",
      "url": "https://access.redhat.com/errata/RHSA-2026:19375"
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    {
      "type": "ADVISORY",
      "url": "https://access.redhat.com/errata/RHSA-2026:21769"
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    {
      "type": "ADVISORY",
      "url": "https://access.redhat.com/errata/RHSA-2026:22347"
    },
    {
      "type": "ADVISORY",
      "url": "https://access.redhat.com/errata/RHSA-2026:22423"
    },
    {
      "type": "ADVISORY",
      "url": "https://access.redhat.com/errata/RHSA-2026:22450"
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    {
      "type": "ADVISORY",
      "url": "https://access.redhat.com/errata/RHSA-2026:22714"
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      "url": "https://access.redhat.com/errata/RHSA-2026:22862"
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      "type": "ADVISORY",
      "url": "https://access.redhat.com/errata/RHSA-2026:22937"
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    {
      "type": "ADVISORY",
      "url": "https://access.redhat.com/errata/RHSA-2026:23228"
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      "type": "ADVISORY",
      "url": "https://access.redhat.com/errata/RHSA-2026:23345"
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      "url": "https://access.redhat.com/errata/RHSA-2026:26568"
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      "url": "https://access.redhat.com/errata/RHSA-2026:26585"
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      "url": "https://access.redhat.com/errata/RHSA-2026:28047"
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      "url": "https://access.redhat.com/errata/RHSA-2026:29854"
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      "url": "https://access.redhat.com/errata/RHSA-2026:36796"
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      "url": "https://access.redhat.com/errata/RHSA-2026:39810"
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      "url": "https://access.redhat.com/errata/RHSA-2026:41019"
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      "url": "https://access.redhat.com/errata/RHSA-2026:41928"
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      "type": "ADVISORY",
      "url": "https://access.redhat.com/errata/RHSA-2026:5110"
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    {
      "type": "ADVISORY",
      "url": "https://access.redhat.com/errata/RHSA-2026:5549"
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    {
      "type": "ADVISORY",
      "url": "https://access.redhat.com/errata/RHSA-2026:7291"
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    {
      "type": "ADVISORY",
      "url": "https://access.redhat.com/errata/RHSA-2026:8151"
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      "type": "ADVISORY",
      "url": "https://access.redhat.com/errata/RHSA-2026:8167"
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      "type": "ADVISORY",
      "url": "https://access.redhat.com/errata/RHSA-2026:8337"
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      "type": "ADVISORY",
      "url": "https://access.redhat.com/errata/RHSA-2026:8338"
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      "type": "ADVISORY",
      "url": "https://access.redhat.com/errata/RHSA-2026:8842"
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      "url": "https://access.redhat.com/errata/RHSA-2026:9052"
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      "type": "ADVISORY",
      "url": "https://access.redhat.com/errata/RHSA-2026:9385"
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      "type": "ADVISORY",
      "url": "https://access.redhat.com/errata/RHSA-2026:9697"
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    {
      "type": "ADVISORY",
      "url": "https://access.redhat.com/errata/RHSA-2026:9698"
    },
    {
      "type": "ADVISORY",
      "url": "https://access.redhat.com/errata/RHSA-2026:9699"
    },
    {
      "type": "ADVISORY",
      "url": "https://access.redhat.com/errata/RHSA-2026:9872"
    },
    {
      "type": "ADVISORY",
      "url": "https://access.redhat.com/security/cve/CVE-2026-27137"
    },
    {
      "type": "ADVISORY",
      "url": "https://github.com/CVEProject/cvelistV5/tree/main/cves/2026/27xxx/CVE-2026-27137.json"
    },
    {
      "type": "ADVISORY",
      "url": "https://nvd.nist.gov/vuln/detail/CVE-2026-27137"
    },
    {
      "type": "REPORT",
      "url": "https://bugzilla.redhat.com/show_bug.cgi?id=2445345"
    }
  ],
  "schema_version": "1.8.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    }
  ],
  "summary": "Incorrect enforcement of email constraints in crypto/x509"
}