Skip to content
Fencer Vulns
medium 4.3

CVE-2021-38004 json

Insufficient policy enforcement in Autofill in Google Chrome prior to 95.0.4638.69 allowed a remote attacker to leak cross-origin data via…

published 2021-11-23 4 y ago modified 2026-06-17 4 mo ago also EUVD-2021-24477

cvss
4.3
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
0.9%
EPSS 0.9% chance of exploitation in 30 days, percentile 59%
public exploits
0
none known

Summary

Insufficient policy enforcement in Autofill in Google Chrome prior to 95.0.4638.69 allowed a remote attacker to leak cross-origin data via a crafted HTML page.

Patch / fix

  • Google Chrome 95.0.4638.69
  • chromium Debian 14, Debian 13, Debian 12 97.0.4692.71-0.1

debian advisories DEBIAN-CVE-2021-38004

  • chromium-browser Ubuntu 18.04 LTS 95.0.4638.69-0ubuntu0.18.04.1

ubuntu advisories UBUNTU-CVE-2021-38004

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

  • opera openSUSE Leap 15.4 NonFree 85.0.4341.28-lp154.2.5.1
  • opera openSUSE Leap 15.3 NonFree 83.0.4254.27-lp153.2.33.1

opensuse advisories openSUSE-SU-2022:0110-1openSUSE-SU-2022:0047-1

  • vivaldi Arch Linux 5.0.2497.24-1
  • chromium Arch Linux 95.0.4638.69-1

arch linux advisories AVG-2475AVG-2504

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-2021-38004 updated cvss 8.8

chromium-browser: Insufficient policy enforcement in Autofill

  • Red Hat All currently supported Red Hat products
    not affected: vulnerable code not present

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

0.87% chance of exploitation in the next 30 days, higher than 59% of all scored CVEs (FIRST EPSS, 2026-11-08).

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:L/I:N/A:N
NVD 2.0 4.3 AV:N/AC:M/Au:N/C:P/I:N/A:N

Affected products

  • Google Chrome

Classification

Weakness
  • CWE-668 Exposure of Resource to Wrong Sphere
Technology feeds

References

Sources

Fencer Vulns 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.