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CVE-2016-1636

Status: ModifiedCritical (9.8)—

The PendingScript::notifyFinished function in WebKit/Source/core/dom/PendingScript.cpp in Google Chrome before 49.0.2623.75 relies on memory-cache information about integrity-check occurrences instead of integrity-check successes, which allows remote attackers to bypass the Subresource Integrity (aka SRI) protection mechanism by triggering two loads of the same resource.

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)

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{
  "id": "CVE-2016-1636",
  "cveTags": [],
  "metrics": {
    "cvssMetricV2": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "version": "2.0",
          "baseScore": 7.5,
          "accessVector": "NETWORK",
          "vectorString": "AV:N/AC:L/Au:N/C:P/I:P/A:P",
          "authentication": "NONE",
          "integrityImpact": "PARTIAL",
          "accessComplexity": "LOW",
          "availabilityImpact": "PARTIAL",
          "confidentialityImpact": "PARTIAL"
        },
        "acInsufInfo": false,
        "impactScore": 6.4,
        "baseSeverity": "HIGH",
        "obtainAllPrivilege": false,
        "exploitabilityScore": 10,
        "obtainUserPrivilege": false,
        "obtainOtherPrivilege": false
      }
    ],
    "cvssMetricV30": [
      {
        "type": "Primary",
        "source": "nvd@nist.gov",
        "cvssData": {
          "scope": "UNCHANGED",
          "version": "3.0",
          "baseScore": 9.8,
          "attackVector": "NETWORK",
          "baseSeverity": "CRITICAL",
          "vectorString": "CVSS:3.0/AV:N/AC:L/PR:N/UI:N/S:U/C:H/I:H/A:H",
          "integrityImpact": "HIGH",
          "userInteraction": "NONE",
          "attackComplexity": "LOW",
          "availabilityImpact": "HIGH",
          "privilegesRequired": "NONE",
          "confidentialityImpact": "HIGH"
        },
        "impactScore": 5.9,
        "exploitabilityScore": 3.9
      }
    ]
  },
  "affected": [
    {
      "source": "chrome-cve-admin@google.com",
      "affectedData": [
        {
          "vendor": "n/a",
          "product": "n/a",
          "versions": [
            {
              "status": "affected",
              "version": "n/a"
            }
          ]
        }
      ]
    }
  ],
  "published": "2016-03-06T02:59:07.400",
  "references": [
    {
      "url": "http://googlechromereleases.blogspot.com/2016/03/stable-channel-update.html",
      "source": "chrome-cve-admin@google.com"
    },
    {
      "url": "http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00014.html",
      "source": "chrome-cve-admin@google.com"
    },
    {
      "url": "http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00015.html",
      "source": "chrome-cve-admin@google.com"
    },
    {
      "url": "http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00018.html",
      "source": "chrome-cve-admin@google.com"
    },
    {
      "url": "http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00028.html",
      "source": "chrome-cve-admin@google.com"
    },
    {
      "url": "http://www.debian.org/security/2016/dsa-3507",
      "source": "chrome-cve-admin@google.com"
    },
    {
      "url": "http://www.securityfocus.com/bid/84008",
      "source": "chrome-cve-admin@google.com"
    },
    {
      "url": "http://www.securitytracker.com/id/1035185",
      "source": "chrome-cve-admin@google.com"
    },
    {
      "url": "http://www.ubuntu.com/usn/USN-2920-1",
      "source": "chrome-cve-admin@google.com"
    },
    {
      "url": "https://code.google.com/p/chromium/issues/detail?id=584155",
      "source": "chrome-cve-admin@google.com"
    },
    {
      "url": "https://codereview.chromium.org/1713093002",
      "source": "chrome-cve-admin@google.com"
    },
    {
      "url": "https://security.gentoo.org/glsa/201603-09",
      "source": "chrome-cve-admin@google.com"
    },
    {
      "url": "http://googlechromereleases.blogspot.com/2016/03/stable-channel-update.html",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00014.html",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00015.html",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00018.html",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://lists.opensuse.org/opensuse-security-announce/2016-03/msg00028.html",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.debian.org/security/2016/dsa-3507",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.securityfocus.com/bid/84008",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.securitytracker.com/id/1035185",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "http://www.ubuntu.com/usn/USN-2920-1",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://code.google.com/p/chromium/issues/detail?id=584155",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://codereview.chromium.org/1713093002",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    },
    {
      "url": "https://security.gentoo.org/glsa/201603-09",
      "source": "af854a3a-2127-422b-91ae-364da2661108"
    }
  ],
  "vulnStatus": "Modified",
  "weaknesses": [
    {
      "type": "Primary",
      "source": "nvd@nist.gov",
      "description": [
        {
          "lang": "en",
          "value": "CWE-264"
        }
      ]
    }
  ],
  "descriptions": [
    {
      "lang": "en",
      "value": "The PendingScript::notifyFinished function in WebKit/Source/core/dom/PendingScript.cpp in Google Chrome before 49.0.2623.75 relies on memory-cache information about integrity-check occurrences instead of integrity-check successes, which allows remote attackers to bypass the Subresource Integrity (aka SRI) protection mechanism by triggering two loads of the same resource."
    },
    {
      "lang": "es",
      "value": "La función PendingScript::notifyFinished en WebKit/Source/core/dom/PendingScript.cpp en Google Chrome en versiones anteriores a 49.0.2623.75 confía en la información de memoria caché sobre ocurrencias de control de integridad en vez de éxitos de control de integridad, lo que permite a atacantes remotos eludir el mecanismo de protección Subresource Integrity (también conocido como SRI) desencadenando dos cargas del mismo recurso."
    }
  ],
  "lastModified": "2026-06-17T00:42:18.617",
  "configurations": [
    {
      "nodes": [
        {
          "negate": false,
          "cpeMatch": [
            {
              "criteria": "cpe:2.3:a:google:chrome:*:*:*:*:*:*:*:*",
              "vulnerable": true,
              "matchCriteriaId": "99CABF0F-D201-46AE-83DC-09257264BF7D",
              "versionEndIncluding": "48.0.2564.116"
            }
          ],
          "operator": "OR"
        }
      ]
    }
  ],
  "sourceIdentifier": "chrome-cve-admin@google.com"
}