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Fencer Vulns
high 8.8

CVE-2022-42826 json

A use after free issue was addressed with improved memory management.

published 2023-02-27 3 y ago modified 2026-06-17 4 mo ago also EUVD-2022-45889

cvss
8.8
version 3.1, NVD
cisa kev
Not listed
not in CISA's catalog
epss
0.8%
EPSS 0.8% chance of exploitation in 30 days, percentile 55%
public exploits
0
none known

Summary

A use after free issue was addressed with improved memory management. This issue is fixed in macOS Ventura 13, iOS 16.1 and iPadOS 16, Safari 16.1. Processing maliciously crafted web content may lead to arbitrary code execution.

Patch / fix

  • Apple macOS 13, 16.1
  • wpewebkit Debian 14, Debian 13, Debian 12 2.38.4-1
  • webkit2gtk Debian 14, Debian 13, Debian 12 2.38.4-1

debian advisories DEBIAN-CVE-2022-42826

  • webkit2gtk Ubuntu 20.04 LTS 2.38.4-0ubuntu0.20.04.2
  • webkit2gtk Ubuntu 22.04 LTS 2.38.4-0ubuntu0.22.04.1

ubuntu advisories UBUNTU-CVE-2022-42826

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

  • webkit2gtk3 RHEL 8 2.38.5-1.el8
  • webkit2gtk3-jsc RHEL 8 2.38.5-1.el8
  • webkit2gtk3 RHEL 9 2.38.5-1.el9
  • webkit2gtk3-jsc RHEL 9 2.38.5-1.el9
  • webkitgtk4 RHEL 7 ELS 2.48.3-2.el7_9
  • webkitgtk4-jsc RHEL 7 ELS 2.48.3-2.el7_9

red hat advisories RHSA-2025:10364RHSA-2023:2834RHSA-2023:2256

  • webkit2gtk3 SLES for SAP 12 SP5, SLES for SAP 12 SP4, SLES 12 SP5 +6 more 2.38.5-2.131.4
  • webkit2gtk3 SLES for SAP 15 SP1, SLES 15 SP1-LTSS, SLE High Performance Computing 15 SP1-LTSS +1 more 2.38.5-150000.3.134.1
  • webkit2gtk3 SLES for SAP 15 SP3, SLES for SAP 15 SP2, SLES 15 SP3-LTSS +10 more 2.38.5-150200.66.1
  • webkit2gtk3 SLE Module for Desktop Applications 15 SP4, openSUSE Leap 15.4 2.38.5-150400.4.34.2
  • webkit2gtk4 SLE Module for Development Tools 15 SP4, openSUSE Leap 15.4 2.38.5-150400.4.34.2
  • webkit2gtk3-soup2 SLE Module for Basesystem 15 SP4, openSUSE Leap 15.4 2.38.5-150400.4.34.2
  • webkit2gtk3 SLES for SAP 12 SP5, SLES 12 SP5, SLE Software Development Kit 12 SP5 2.38.4-2.126.1

suse advisories SUSE-SU-2023:1681-1SUSE-SU-2023:0573-1SUSE-SU-2023:0490-1SUSE-SU-2023:0489-1SUSE-SU-2023:0397-1

  • webkit2gtk3 AlmaLinux 8 2.38.5-1.el8
  • webkit2gtk3-jsc AlmaLinux 8 2.38.5-1.el8
  • webkit2gtk3 AlmaLinux 9 2.38.5-1.el9
  • webkit2gtk3-jsc AlmaLinux 9 2.38.5-1.el9

almalinux advisories ALSA-2023:2834ALSA-2023:2256

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-2022-42826 updated cvss 8.8

webkitgtk: use-after-free issue leading to arbitrary code execution

  • Red Hat Enterprise Linux 6 webkitgtk
    affected: no fix planned “Out of support scope”
  • Red Hat Enterprise Linux 7 webkitgtk3, libwebkit2gtk
    affected: no fix available
  • Red Hat Enterprise Linux AppStream (v. 8) webkit2gtk3 2.38.5-1.el8, webkit2gtk3-jsc 2.38.5-1.el8
    fixed: vendor fix RHSA-2023:2834
  • Red Hat Enterprise Linux AppStream (v. 9) webkit2gtk3 2.38.5-1.el9, webkit2gtk3-jsc 2.38.5-1.el9
    fixed: vendor fix RHSA-2023:2256
  • Red Hat Enterprise Linux Server (v. 7 ELS) webkitgtk4 2.48.3-2.el7_9, webkitgtk4-jsc 2.48.3-2.el7_9 Red Hat Enterprise Linux Server Optional (v. 7 ELS) webkitgtk4-doc 2.48.3-2.el7_9, webkitgtk4-devel 2.48.3-2.el7_9, webkitgtk4-debuginfo 2.48.3-2.el7_9, webkitgtk4-jsc-devel 2.48.3-2.el7_9
    fixed: vendor fix RHSA-2025:10364

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
19 mo ago

Exploit prediction

0.77% chance of exploitation in the next 30 days, higher than 55% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
NVD 3.1 8.8 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:H

Affected products

  • Apple macOS

Classification

Weakness

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.