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Fencer Intel
medium 4.3

CVE-2019-5864 json

Insufficient data validation in CORS in Google Chrome prior to 76.0.3809.87 allowed an attacker who convinced a user to install a malicious…

published 6y ago modified 4mo ago also EUVD-2019-15435

cvss
4.3
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
0.5%
EPSS 0.5% chance of exploitation in 30 days, percentile 40%
public exploits
0
none known

Summary

Insufficient data validation in CORS in Google Chrome prior to 76.0.3809.87 allowed an attacker who convinced a user to install a malicious extension to bypass content security policy via a crafted Chrome Extension.

Patch / fix

  • Google Chrome 76.0.3809.87
  • chromium Debian 14, Debian 13, Debian 12 76.0.3809.87-1

debian advisories DEBIAN-CVE-2019-5864

  • chromium-browser Ubuntu 16.04 LTS 76.0.3809.87-0ubuntu0.16.04.1
  • chromium-browser Ubuntu 18.04 LTS 76.0.3809.87-0ubuntu0.18.04.1

ubuntu advisories UBUNTU-CVE-2019-5864

Ubuntu security data © Canonical Ltd., from https://github.com/canonical/ubuntu-security-notices via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

  • chromium-browser RHEL 6 EXTRAS 76.0.3809.87-1.el6_10

red hat advisories RHSA-2019:2427

  • chromium openSUSE Tumbleweed 93.0.4577.82-1.1
  • chromium openSUSE Tumbleweed 113.0.5672.92-1.1
  • chromium Package Hub 12 SP3 78.0.3904.87-10.1
  • chromium Package Hub 15 SP1 76.0.3809.87-bp151.3.3.3
  • chromium Package Hub 15 76.0.3809.87-bp150.220.1
  • chromium openSUSE Leap 15.1 76.0.3809.87-lp151.2.15.1
  • chromium openSUSE Leap 15.0 76.0.3809.87-lp150.224.1

opensuse advisories openSUSE-SU-2024:10681-1openSUSE-SU-2024:12948-1openSUSE-SU-2019:2447-1openSUSE-SU-2019:1901-1openSUSE-SU-2019:1853-1openSUSE-SU-2019:1849-1

  • chromium Arch Linux 76.0.3809.87-1

arch linux advisories AVG-1013

Is CVE-2019-5864 in your stack? Fencer shows which of your repositories are affected as soon as an advisory lands, and opens the fix as a pull request.

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Vendor advisories

What the vendors themselves say about their products: affected, fixed or not affected, and what to do.

red hat product security vex CVE-2019-5864 updated cvss 4.3

chromium-browser: Insufficient port filtering in CORS for extensions

  • Red Hat Enterprise Linux Desktop Supplementary (v. 6) chromium-browser 76.0.3809.87-1.el6_10 Red Hat Enterprise Linux HPC Node Supplementary (v. 6) chromium-browser 76.0.3809.87-1.el6_10 Red Hat Enterprise Linux Server Supplementary (v. 6) chromium-browser 76.0.3809.87-1.el6_10 Red Hat Enterprise Linux Workstation Supplementary (v. 6) chromium-browser 76.0.3809.87-1.el6_10
    fixed: vendor fix RHSA-2019:2427

Red Hat CSAF VEX © Red Hat, Inc., from https://security.access.redhat.com/data/csaf/v2/vex/; changed: reduced to product statuses and remediations. CC BY 4.0 · csaf

Exploit prediction

0.46% chance of exploitation in the next 30 days, higher than 40% of all scored CVEs (FIRST EPSS, 2026-11-09).

CVSS scores

assigned by version score vector
NVD 3.1 4.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:L/A:N
NVD 2.0 4.3 AV:N/AC:M/Au:N/C:N/I:P/A:N

Affected products

  • Google Chrome

Classification

Weakness
  • CWE-20 Improper Input Validation
  • CWE-863 Incorrect Authorization
Technology feeds

References

Sources

Fencer Intel keeps one entry per vulnerability: the CVE id wins, then GHSA, and records that alias each other are merged, except that two CVEs always keep separate entries. The same data is available as JSON.