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Fencer Vulns
high 8.3

CVE-2026-6311 json

Uninitialized Use in Accessibility in Google Chrome on Windows prior to 147.0.7727.101 allowed a remote attacker who had compromised the re…

published 2026-04-15 6 mo ago modified 2026-10-26 13 d ago also EUVD-2026-23064

cvss
8.3
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.3%
EPSS 0.3% chance of exploitation in 30 days, percentile 19%
public exploits
0
none known

Summary

Uninitialized Use in Accessibility in Google Chrome on Windows prior to 147.0.7727.101 allowed a remote attacker who had compromised the renderer process to potentially perform a sandbox escape via a crafted HTML page. (Chromium security severity: High)

Patch / fix

  • google chrome 147.0.7727.101
  • chromium Debian 12 147.0.7727.101-1~deb12u1
  • chromium Debian 13 147.0.7727.101-1~deb13u1
  • chromium Debian 14 147.0.7727.101-1

debian advisories DEBIAN-CVE-2026-6311

  • chromium openSUSE Leap 16.0 147.0.7727.137-bp160.1.1
  • chromium openSUSE Tumbleweed 147.0.7727.101-1.1

opensuse advisories openSUSE-SU-2026:20660-1openSUSE-SU-2026:10572-1

  • qt6-qtwebengine Alpine 3.23 6.10.3-r2
  • qt6-qtwebengine Alpine 3.24 6.11.0-r4

alpine advisories ALPINE-CVE-2026-6311

Alpine secdb © Alpine Linux, from https://secdb.alpinelinux.org via OSV; changed: normalised to fixed package versions per release. CC BY-SA 4.0

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-2026-6311 updated cvss 9.0

chromium-browser: Uninitialized Use in Accessibility

  • 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

CISA SSVC

Exploitation
none
Automatable
no
Technical impact
total
Assessed
6 mo ago

Exploit prediction

0.27% chance of exploitation in the next 30 days, higher than 19% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CISA ADP 3.1 8.3 CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H
CNA 3.1 8.3 CVSS:3.1/AV:N/AC:H/PR:N/UI:R/S:C/C:H/I:H/A:H

Affected products

  • Google Chrome

Classification

Weakness
  • CWE-457 Use of Uninitialized Variable
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.