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CVE-2015-1269

Status: ModifiedMedium (4.3)—

The DecodeHSTSPreloadRaw function in net/http/transport_security_state.cc in Google Chrome before 43.0.2357.130 does not properly canonicalize DNS hostnames before making comparisons to HSTS or HPKP preload entries, which allows remote attackers to bypass intended access restrictions via a string that (1) ends in a . (dot) character or (2) is not entirely lowercase.

CVSS

Exploitation probability (EPSS)

EPSS (Exploit Prediction Scoring System, FIRST) estimates how likely a vulnerability is to be exploited in the wild within 30 days. It complements CVSS (impact) and CISA KEV (confirmed exploitation).

Affected technologies (1)

Google — Chrome

CWEs

References

Raw JSON (NVD)

Show
{
  "id": "CVE-2015-1269",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 4.3,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:M/Au:N/C:N/I:P/A:N",
          "authentication": "NONE",
          "integrityImpact": "PARTIAL",
          "accessComplexity": "MEDIUM",
          "availabilityImpact": "NONE",
          "confidentialityImpact": "NONE"
        },
        "acInsufInfo": false,
        "impactScore": 2.9,
        "baseSeverity": "MEDIUM",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 8.6,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false,
        "userInteractionRequired": false
      }
    ]
  },
  "affected": [
    {
      "source": "chrome-cve-admin@google.com",
      "affectedData": [
        {
          "vendor": "n/a",
          "product": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ]
    }
  ],
  "published": "2015-06-26T14:59:03.923",
  "references": [
    {
      "url": "http://googlechromereleases.blogspot.com/2015/06/chrome-stable-update.html",
      "source": "chrome-cve-admin@google.com"
    },
    {
      "url": "http://lists.opensuse.org/opensuse-updates/2015-06/msg00057.html",
      "source": "chrome-cve-admin@google.com"
    },
    {
      "url": "http://lists.opensuse.org/opensuse-updates/2015-11/msg00012.html",
      "source": "chrome-cve-admin@google.com"
    },
    {
      "url": "http://rhn.redhat.com/errata/RHSA-2015-1188.html",
      "source": "chrome-cve-admin@google.com"
    },
    {
      "url": "http://www.debian.org/security/2015/dsa-3315",
      "source": "chrome-cve-admin@google.com"
    },
    {
      "url": "http://www.securityfocus.com/bid/75336",
      "source": "chrome-cve-admin@google.com"
    },
    {
      "url": "http://www.securitytracker.com/id/1032731",
      "source": "chrome-cve-admin@google.com"
    },
    {
      "url": "http://www.ubuntu.com/usn/USN-2652-1",
      "source": "chrome-cve-admin@google.com"
    },
    {
      "url": "https://code.google.com/p/chromium/issues/detail?id=461481",
      "source": "chrome-cve-admin@google.com"
    },
    {
      "url": "https://codereview.chromium.org/1149753002",
      "source": "chrome-cve-admin@google.com"
    },
    {
      "url": "https://security.gentoo.org/glsa/201507-18",
      "source": "chrome-cve-admin@google.com"
    },
    {
      "url": "http://googlechromereleases.blogspot.com/2015/06/chrome-stable-update.html",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://lists.opensuse.org/opensuse-updates/2015-06/msg00057.html",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://lists.opensuse.org/opensuse-updates/2015-11/msg00012.html",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://rhn.redhat.com/errata/RHSA-2015-1188.html",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.debian.org/security/2015/dsa-3315",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.securityfocus.com/bid/75336",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.securitytracker.com/id/1032731",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.ubuntu.com/usn/USN-2652-1",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://code.google.com/p/chromium/issues/detail?id=461481",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://codereview.chromium.org/1149753002",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://security.gentoo.org/glsa/201507-18",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-254"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "The DecodeHSTSPreloadRaw function in net/http/transport_security_state.cc in Google Chrome before 43.0.2357.130 does not properly canonicalize DNS hostnames before making comparisons to HSTS or HPKP preload entries, which allows remote attackers to bypass intended access restrictions via a string that (1) ends in a . (dot) character or (2) is not entirely lowercase."
    },
    {
      "lang": "es",
      "value": "La función DecodeHSTSPreloadRaw en net/http/transport_security_state.cc en Google Chrome anterior a 43.0.2357.130 no canonicaliza correctamente los nombres de anfitriones DNS antes de hacer comparaciones con las entradas de precarga HSTS o HPKP, lo que permite a atacantes remotos evadir las restricciones de acceso a través de una cadena que (1) acaba en un caracter . (punto) o (2) no está completamente en minúsculas."
    }
  ],
  "lastModified": "2026-06-17T00:22:05.110",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:google:chrome:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "AA6ADD0A-4381-47BB-93F1-386ADB5C3924",
              "versionEndIncluding": "43.0.2357.81"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "chrome-cve-admin@google.com"
}