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ubuntu-cve-2026-27137
Vulnerability from osv_ubuntu
Published
2026-03-06 22:16
Modified
2026-07-08 20:53
Summary
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.

Severity
7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
7.5 (High)
CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H
N/A (UNKNOWN)
medium
References
To clipboard 

{
  "affected": [
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "golang-1.24",
            "binary_version": "1.24.4-1ubuntu1~22.04.2"
          },
          {
            "binary_name": "golang-1.24-go",
            "binary_version": "1.24.4-1ubuntu1~22.04.2"
          },
          {
            "binary_name": "golang-1.24-src",
            "binary_version": "1.24.4-1ubuntu1~22.04.2"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:22.04:LTS",
        "name": "golang-1.24",
        "purl": "pkg:deb/ubuntu/golang-1.24@1.24.4-1ubuntu1~22.04.2?arch=source\u0026distro=jammy"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.24.4-1ubuntu1~22.04.1",
        "1.24.4-1ubuntu1~22.04.2"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "golang-1.24",
            "binary_version": "1.24.4-1ubuntu1~24.04.2"
          },
          {
            "binary_name": "golang-1.24-go",
            "binary_version": "1.24.4-1ubuntu1~24.04.2"
          },
          {
            "binary_name": "golang-1.24-src",
            "binary_version": "1.24.4-1ubuntu1~24.04.2"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:24.04:LTS",
        "name": "golang-1.24",
        "purl": "pkg:deb/ubuntu/golang-1.24@1.24.4-1ubuntu1~24.04.2?arch=source\u0026distro=noble"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.24.4-1ubuntu1~24.04.1",
        "1.24.4-1ubuntu1~24.04.2"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "golang-1.24",
            "binary_version": "1.24.4-1ubuntu1"
          },
          {
            "binary_name": "golang-1.24-go",
            "binary_version": "1.24.4-1ubuntu1"
          },
          {
            "binary_name": "golang-1.24-src",
            "binary_version": "1.24.4-1ubuntu1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:25.10",
        "name": "golang-1.24",
        "purl": "pkg:deb/ubuntu/golang-1.24@1.24.4-1ubuntu1?arch=source\u0026distro=questing"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.24.2-1",
        "1.24.2-2",
        "1.24.4-1",
        "1.24.4-1ubuntu1"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "golang-1.25",
            "binary_version": "1.25.7-2~25.10.1"
          },
          {
            "binary_name": "golang-1.25-go",
            "binary_version": "1.25.7-2~25.10.1"
          },
          {
            "binary_name": "golang-1.25-src",
            "binary_version": "1.25.7-2~25.10.1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:25.10",
        "name": "golang-1.25",
        "purl": "pkg:deb/ubuntu/golang-1.25@1.25.7-2~25.10.1?arch=source\u0026distro=questing"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.25.0-0ubuntu1",
        "1.25.7-2~25.10.1"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "golang-1.24",
            "binary_version": "1.24.13-2"
          },
          {
            "binary_name": "golang-1.24-go",
            "binary_version": "1.24.13-2"
          },
          {
            "binary_name": "golang-1.24-src",
            "binary_version": "1.24.13-2"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:26.04:LTS",
        "name": "golang-1.24",
        "purl": "pkg:deb/ubuntu/golang-1.24@1.24.13-2?arch=source\u0026distro=resolute"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.24.4-1ubuntu1",
        "1.24.9-1",
        "1.24.13-2"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "golang-1.25",
            "binary_version": "1.25.7-2"
          },
          {
            "binary_name": "golang-1.25-go",
            "binary_version": "1.25.7-2"
          },
          {
            "binary_name": "golang-1.25-src",
            "binary_version": "1.25.7-2"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:26.04:LTS",
        "name": "golang-1.25",
        "purl": "pkg:deb/ubuntu/golang-1.25@1.25.7-2?arch=source\u0026distro=resolute"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.25.0-0ubuntu1",
        "1.25.7-2"
      ]
    },
    {
      "ecosystem_specific": {
        "binaries": [
          {
            "binary_name": "golang-1.26",
            "binary_version": "1.26.0-1"
          },
          {
            "binary_name": "golang-1.26-go",
            "binary_version": "1.26.0-1"
          },
          {
            "binary_name": "golang-1.26-src",
            "binary_version": "1.26.0-1"
          }
        ]
      },
      "package": {
        "ecosystem": "Ubuntu:26.04:LTS",
        "name": "golang-1.26",
        "purl": "pkg:deb/ubuntu/golang-1.26@1.26.0-1?arch=source\u0026distro=resolute"
      },
      "ranges": [
        {
          "events": [
            {
              "introduced": "0"
            }
          ],
          "type": "ECOSYSTEM"
        }
      ],
      "versions": [
        "1.26~rc3-2",
        "1.26.0-1"
      ]
    }
  ],
  "aliases": [],
  "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": "UBUNTU-CVE-2026-27137",
  "modified": "2026-07-08T20:53:59Z",
  "published": "2026-03-06T22:16:00Z",
  "references": [
    {
      "type": "REPORT",
      "url": "https://ubuntu.com/security/CVE-2026-27137"
    },
    {
      "type": "REPORT",
      "url": "https://www.cve.org/CVERecord?id=CVE-2026-27137"
    },
    {
      "type": "REPORT",
      "url": "https://github.com/golang/go/issues/77952"
    },
    {
      "type": "REPORT",
      "url": "https://go.dev/cl/752182"
    },
    {
      "type": "REPORT",
      "url": "https://go.dev/issue/77952"
    },
    {
      "type": "REPORT",
      "url": "https://groups.google.com/g/golang-announce/c/EdhZqrQ98hk"
    },
    {
      "type": "REPORT",
      "url": "https://pkg.go.dev/vuln/GO-2026-4599"
    }
  ],
  "related": [],
  "schema_version": "1.7.0",
  "severity": [
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "CVSS:3.1/AV:N/AC:L/PR:N/UI:N/S:U/C:N/I:N/A:H",
      "type": "CVSS_V3"
    },
    {
      "score": "medium",
      "type": "Ubuntu"
    }
  ],
  "upstream": [
    "CVE-2026-27137"
  ]
}



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