CVE-2019-13727

HIGHNVD 8.88.8—

8.8

Insufficient policy enforcement in WebSockets in Google Chrome prior to 79.0.3945.79 allowed a remote attacker to bypass same origin policy via a crafted HTML page.

CVSS v3: 8.8
EG Score: 8.8(medium)
EPSS: 79.8%
KEV: Not listed

Published

December 10, 2019

Last Modified

November 21, 2024

References (20)

chrome-cve-admin@googlehttp://lists.opensuse.org/opensuse-security-announce/2019-12/msg00032.html
chrome-cve-admin@googlehttp://lists.opensuse.org/opensuse-security-announce/2019-12/msg00036.html
chrome-cve-admin@googlehttps://access.redhat.com/errata/RHSA-2019:4238
chrome-cve-admin@googlehttps://chromereleases.googleblog.com/2019/12/stable-channel-update-for-desktop.html
chrome-cve-admin@googlehttps://crbug.com/944619
chrome-cve-admin@googlehttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/2Z5M4FPUMDNX2LDPHJKN5ZV5GIS2AKNU/
chrome-cve-admin@googlehttps://lists.fedoraproject.org/archives/list/package-announce%40lists.fedoraproject.org/message/N5CIQCVS6E3ULJCNU7YJXJPO2BLQZDTK/
chrome-cve-admin@googlehttps://seclists.org/bugtraq/2020/Jan/27
chrome-cve-admin@googlehttps://security.gentoo.org/glsa/202003-08
chrome-cve-admin@googlehttps://www.debian.org/security/2020/dsa-4606
af854a3a-2127-422b-91ae-364da2661108http://lists.opensuse.org/opensuse-security-announce/2019-12/msg00032.html
af854a3a-2127-422b-91ae-364da2661108http://lists.opensuse.org/opensuse-security-announce/2019-12/msg00036.html
af854a3a-2127-422b-91ae-364da2661108https://access.redhat.com/errata/RHSA-2019:4238
af854a3a-2127-422b-91ae-364da2661108https://chromereleases.googleblog.com/2019/12/stable-channel-update-for-desktop.html
af854a3a-2127-422b-91ae-364da2661108https://crbug.com/944619

Patch Availability(1)

Vendor / Ecosystem	Fixed in / Patch	Released	Source
redhat	chromium-browser-0:79.0.3945.79-1.el6_10	2019-12-16	redhat

Patches are aggregated from vendor advisories (Red Hat, Microsoft, Cisco, GitHub) and package ecosystems (OSV, GHSA). Multiple rows for the same upstream release have been deduplicated.

Weakness Classification(1)

MITRE Common Weakness Enumeration — the root-cause categories this CVE belongs to.

CWE-281Improper Preservation of Permissions

All Vendor Advisories

(1)

Every vendor that published an advisory referencing this CVE — pulled from our cve_vendor_advisories aggregation. Click any row for the vendor's original advisory page.

Red HatRHSA-2019:4238IMPORTANT2019-12-10
RHSA-2019:4238 — Important

Data Freshness Timeline

(refreshed 8× in last 7d / 8× in last 30d)

Every time one of our enrichment pipelines (NVD, MITRE cvelistV5, EPSS, CISA KEV, GHSA, OSV, vendor advisories) ran against this CVE. Most recent first.

2026-05-27 13:38 UTCepss_batch
2026-05-27 10:46 UTCEG score recompute
2026-05-27 10:46 UTCVendor advisory
2026-05-27 10:46 UTCGHSA enrichment
2026-05-26 13:42 UTCepss_batch
2026-05-26 13:42 UTCepss_batch
2026-05-26 07:17 UTCepss_batch
2026-05-26 07:17 UTCepss_batch

Frequently asked(5)

What is CVE-2019-13727?

CVE-2019-13727 is a high vulnerability published on December 10, 2019. Insufficient policy enforcement in WebSockets in Google Chrome prior to 79.0.3945.79 allowed a remote attacker to bypass same origin policy via a crafted HTML page.

When was CVE-2019-13727 disclosed?

CVE-2019-13727 was first published in the National Vulnerability Database on December 10, 2019, with the most recent update on November 21, 2024. EchelonGraph re-ingests CVE updates from NVD on a 2-hour cycle, so this page reflects the latest published state.

Is CVE-2019-13727 actively exploited?

CVE-2019-13727 is not currently on CISA's Known Exploited Vulnerabilities catalog. FIRST EPSS estimates a 79.8% percentile likelihood of exploitation in the next 30 days — higher percentiles indicate greater predicted risk.

What is the CVSS score of CVE-2019-13727?

CVE-2019-13727 has a CVSS v3 base score of 8.8 (NVD).

How do I remediate CVE-2019-13727?

Patch to the fixed version published by the affected vendor. Where vendor advisories exist for CVE-2019-13727, EchelonGraph cross-links them in the Vendor Advisories panel below — those typically contain the canonical remediation steps, fixed version numbers, and any vendor-specific mitigations.

Dependency Blast Radius

See which npm, PyPI, Go, and Maven packages are affected by CVE-2019-13727

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