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Fencer Vulns
medium 4.3

CVE-2026-43795 json

The issue was addressed with improved memory handling.

published 2026-08-17 2 mo ago modified 2026-10-26 13 d ago also EUVD-2026-60505

cvss
4.3
version 3.1, CNA
cisa kev
Not listed
not in CISA's catalog
epss
0.6%
EPSS 0.6% chance of exploitation in 30 days, percentile 48%
public exploits
0
none known

Summary

The issue was addressed with improved memory handling. This issue is fixed in Safari 26.6.1, iOS 18.7.10 and iPadOS 18.7.10, iOS 26.6.1 and iPadOS 26.6.1, macOS Tahoe 26.6.2, visionOS 27. Processing maliciously crafted web content may lead to an unexpected Safari crash.

Patch / fix

  • Apple Safari 26.6.1
  • Apple iOS and iPadOS 18.7.10, 26.6.1
  • Apple macOS 26.6.2
  • Apple visionOS 27
  • webkit2gtk3 RHEL 8 2.54.0-1.el8_10
  • webkit2gtk3-jsc RHEL 8 2.54.0-1.el8_10
  • webkit2gtk3 RHEL 9 2.54.0-1.el9_8
  • webkit2gtk3-jsc RHEL 9 2.54.0-1.el9_8

red hat advisories RHSA-2026:74084RHSA-2026:69098

  • webkit2gtk3 AlmaLinux 8 2.54.0-1.el8_10
  • webkit2gtk3-jsc AlmaLinux 8 2.54.0-1.el8_10
  • webkit2gtk3 AlmaLinux 9 2.54.0-1.el9_8
  • webkit2gtk3-jsc AlmaLinux 9 2.54.0-1.el9_8

almalinux advisories ALSA-2026:74084ALSA-2026:69098

  • webkit2gtk3 Rocky Linux 8 2.54.0-1.el8_10
  • webkit2gtk3 Rocky Linux 9 2.54.0-1.el9_8

rocky linux advisories RLSA-2026:74084RLSA-2026:69098

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-2026-43795 updated cvss 8.8

webkitgtk: Processing maliciously crafted web content may lead to an unexpected Safari crash

  • Red Hat Enterprise Linux 6 webkitgtk
    affected: workaround, no fix planned “Out of support scope”
  • Red Hat Enterprise Linux AppStream (v. 8) webkit2gtk3 2.54.0-1.el8_10, webkit2gtk3-jsc 2.54.0-1.el8_10
    fixed: vendor fix RHSA-2026:74084
  • Red Hat Enterprise Linux AppStream (v. 9) webkit2gtk3 2.54.0-1.el9_8, webkit2gtk3-jsc 2.54.0-1.el9_8
    fixed: vendor fix RHSA-2026:69098
  • Red Hat Enterprise Linux AppStream AUS (v.8.4) webkit2gtk3 2.54.0-1.el8_4, webkit2gtk3-jsc 2.54.0-1.el8_4
    fixed: vendor fix RHSA-2026:95403
  • Red Hat Enterprise Linux AppStream AUS (v.8.6) webkit2gtk3 2.54.0-1.el8_6, webkit2gtk3-jsc 2.54.0-1.el8_6
    fixed: vendor fix RHSA-2026:92339
  • Red Hat Enterprise Linux AppStream E4S (v.8.8) webkit2gtk3 2.54.0-1.el8_8, webkit2gtk3-jsc 2.54.0-1.el8_8
    fixed: vendor fix RHSA-2026:93435
  • Red Hat Enterprise Linux AppStream E4S (v.9.2) webkit2gtk3 2.54.0-1.el9_2, webkit2gtk3-jsc 2.54.0-1.el9_2
    fixed: vendor fix RHSA-2026:89822
  • Red Hat Enterprise Linux AppStream E4S (v.9.4) webkit2gtk3 2.54.0-1.el9_4, webkit2gtk3-jsc 2.54.0-1.el9_4
    fixed: vendor fix RHSA-2026:92216
show 6 more
  • Red Hat Enterprise Linux AppStream EUS (v.9.6) webkit2gtk3 2.54.0-1.el9_6, webkit2gtk3-jsc 2.54.0-1.el9_6
    fixed: vendor fix RHSA-2026:89821
  • Red Hat Enterprise Linux AppStream EUS EXTENSION (v.8.4) webkit2gtk3 2.54.0-1.el8_4, webkit2gtk3-jsc 2.54.0-1.el8_4
    fixed: vendor fix RHSA-2026:95403
  • Red Hat Enterprise Linux AppStream EUS EXTENSION (v.8.6) webkit2gtk3 2.54.0-1.el8_6, webkit2gtk3-jsc 2.54.0-1.el8_6
    fixed: vendor fix RHSA-2026:92339
  • Red Hat Enterprise Linux AppStream TUS (v.8.8) webkit2gtk3 2.54.0-1.el8_8, webkit2gtk3-jsc 2.54.0-1.el8_8
    fixed: vendor fix RHSA-2026:93435
  • Red Hat Enterprise Linux Server (v. 7 ELS) webkitgtk4 2.54.0-1.el7_9, webkitgtk4-jsc 2.54.0-1.el7_9 Red Hat Enterprise Linux Server Optional (v. 7 ELS) webkitgtk4-doc 2.54.0-1.el7_9, webkitgtk4-devel 2.54.0-1.el7_9, webkitgtk4-debuginfo 2.54.0-1.el7_9, webkitgtk4-jsc-devel 2.54.0-1.el7_9
    fixed: vendor fix RHSA-2026:91631
  • Red Hat Enterprise Linux 7 webkitgtk3, libwebkit2gtk
    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
partial
Assessed
2 mo ago

Exploit prediction

0.58% chance of exploitation in the next 30 days, higher than 48% of all scored CVEs (FIRST EPSS, 2026-11-08).

CVSS scores

assigned by version score vector
CISA ADP 3.1 4.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L
CNA 3.1 4.3 CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:N/I:N/A:L

Affected products

  • Apple Safari
  • Apple iOS and iPadOS
  • Apple macOS
  • Apple visionOS

Classification

Weakness
  • CWE-119 Improper Restriction of Operations within the Bounds of a Memory Buffer

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.