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Noroxi
NVD / CVE Program· CNA apple

CVE-2026-28907: The issue was addressed with improved input validation.

Noroxi assessment

Priority: Monitor (action score 32/100)

  • The sources we track (CISA KEV, Exploit-DB, Metasploit, Nuclei, GitHub) show no public exploit code or exploitation in the wild.
  • Probability of exploitation in the next 30 days: 0.30% (FIRST EPSS).
  • Anyone who can reach it over the internet can trigger it. No account or password is required. A user must open a link or visit a page. No special conditions are required; it is repeatable.
  • Fixed version: webkit2gtk3 (AlmaLinux:8) 2.52.4-1.el8_10; webkit2gtk3-devel (AlmaLinux:8) 2.52.4-1.el8_10; webkit2gtk3-jsc (AlmaLinux:8) 2.52.4-1.el8_10.
  • Mentioned 1 time in Turkish national cyber security advisories (siberguvenlik.gov.tr).

Low priority for now. Upgrade to webkit2gtk3 (AlmaLinux:8) 2.52.4-1.el8_10; webkit2gtk3-devel (AlmaLinux:8) 2.52.4-1.el8_10; webkit2gtk3-jsc (AlmaLinux:8) 2.52.4-1.el8_10 or later.

Generated automatically from the record's data: CVSS (NVD and CNA), CISA KEV and SSVC, FIRST EPSS, exploit sources, fixed versions. How we calculate it

Primary sources: NVD · CVE.org · FIRST EPSS

The issue was addressed with improved input validation. This issue is fixed in Safari 26.5, iOS 18.7.9 and iPadOS 18.7.9, iOS 26.5 and iPadOS 26.5, macOS Tahoe 26.5, tvOS 26.5, visionOS 26.5, watchOS 26.5. Processing maliciously crafted web content may prevent Content Security Policy from being enforced.

HighCVSS 8.1 · v3.1—No exploit Fix available
Published
May 11, 2026
Updated
Oct 26, 2026
EPSS
0.3% · 23th percentile

Report tools

JSON

Action score

32

Monitor

Low priority for now.

CVSS
32 / 40 · 8.1 / 10
CISA KEV
0 / 30 · Not listed
EPSS
0 / 30 · 0.3%

CISA SSVC decision

Exploitation
none
Automatable
no
Technical impact
total

Vulnrichment: CISA's decision-tree inputs.

Get told when this record changes

  • Not in KEV: no record of exploitation in the wild
  • No public exploit code on record
  • A fix has been released

If any of these changes, we'll tell you in the daily email digest.

Follow CVE-2026-28907

When you'll hear from us

  • when it enters CISA KEV
  • when exploit code appears or is weaponized
  • when the record is updated (including a fixed version)
  • when EPSS rises 20 points in a week

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Noroxi analysis

What does it mean in your environment?

The assessment above is generated automatically from the record's data; it doesn't know your environment. Our team verifies on your systems whether this vulnerability is actually exploitable and which mitigation is enough.

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Affected systems

Is your version affected?

Pick the product and type the version you run. It's compared with this record's version ranges in your browser; the version isn't sent anywhere.

VendorProduct
appleipados
appleiphone os
applemacos
appletvos
applevisionos
applewatchos

Affected versions

NVD version ranges (for catalog products). Add the product to your stack with a version and matching uses these.

  • apple ipadosbefore 18.7.9
  • apple ipados26.0 and later · before 26.5
  • apple iphone osbefore 18.7.9
  • apple iphone os26.0 and later · before 26.5
  • apple macos26.0 and later · before 26.5
  • apple tvosbefore 26.5
  • apple visionosbefore 26.5
  • apple watchosbefore 26.5

Versions reported by the vendor

Affected version ranges reported by the assigning authority (apple). Independent of NVD's CPE analysis and usually ahead of it.

  • Apple iOS and iPadOS

    • before 18.7.9affected
    • before 26.5affected

  • Apple macOS

    • before 26.5affected

  • Apple Safari

    • before 26.5affected

  • Apple tvOS

    • before 26.5affected

  • Apple visionOS

    • before 26.5affected

  • Apple watchOS

    • before 26.5affected

Package-level exposure

OSV and GitHub Advisory data: ecosystem, package and range. SBOM matching uses this table.

EcosystemPackageAffected rangeFix
AlmaLinux:8webkit2gtk3before 2.52.4-1.el8_102.52.4-1.el8_10
AlmaLinux:8webkit2gtk3-develbefore 2.52.4-1.el8_102.52.4-1.el8_10
AlmaLinux:8webkit2gtk3-jscbefore 2.52.4-1.el8_102.52.4-1.el8_10
AlmaLinux:8webkit2gtk3-jsc-develbefore 2.52.4-1.el8_102.52.4-1.el8_10
AlmaLinux:9webkit2gtk3before 2.52.4-1.el9_82.52.4-1.el9_8
AlmaLinux:9webkit2gtk3-develbefore 2.52.4-1.el9_82.52.4-1.el9_8
AlmaLinux:9webkit2gtk3-jscbefore 2.52.4-1.el9_82.52.4-1.el9_8
AlmaLinux:9webkit2gtk3-jsc-develbefore 2.52.4-1.el9_82.52.4-1.el9_8
Debian:12webkit2gtkfrom 0—
Debian:12wpewebkitfrom 0—
Debian:13webkit2gtkbefore 2.52.5-1~deb13u12.52.5-1~deb13u1
Debian:14webkit2gtkbefore 2.52.4-12.52.4-1
Debian:14wpewebkitbefore 2.52.4-12.52.4-1
openSUSE:Leap 16.0webkit2gtk3before 2.52.4-160000.1.12.52.4-160000.1.1
openSUSE:Leap 16.0webkit2gtk3-soup2before 2.52.4-160000.1.12.52.4-160000.1.1
openSUSE:Leap 16.0webkit2gtk4before 2.52.4-160000.1.12.52.4-160000.1.1
Red Hat:enterprise_linux:8::appstreamwebkit2gtk3before 0:2.52.4-1.el8_100:2.52.4-1.el8_10
Red Hat:enterprise_linux:8::appstreamwebkit2gtk3-debuginfobefore 0:2.52.4-1.el8_100:2.52.4-1.el8_10
Red Hat:enterprise_linux:8::appstreamwebkit2gtk3-debugsourcebefore 0:2.52.4-1.el8_100:2.52.4-1.el8_10
Red Hat:enterprise_linux:8::appstreamwebkit2gtk3-develbefore 0:2.52.4-1.el8_100:2.52.4-1.el8_10
Red Hat:enterprise_linux:8::appstreamwebkit2gtk3-devel-debuginfobefore 0:2.52.4-1.el8_100:2.52.4-1.el8_10
Red Hat:enterprise_linux:8::appstreamwebkit2gtk3-jscbefore 0:2.52.4-1.el8_100:2.52.4-1.el8_10
Red Hat:enterprise_linux:8::appstreamwebkit2gtk3-jsc-debuginfobefore 0:2.52.4-1.el8_100:2.52.4-1.el8_10
Red Hat:enterprise_linux:8::appstreamwebkit2gtk3-jsc-develbefore 0:2.52.4-1.el8_100:2.52.4-1.el8_10

+81

Same product

apple: all records

Other highest-scoring records for the same primary product.

  • CVE-2025-43300An out-of-bounds write issue was addressed with improved bounds checking.KEV
    90Now
  • CVE-2021-30860An integer overflow was addressed with improved input validation.KEV
    84Now
  • CVE-2023-41064A buffer overflow issue was addressed with improved memory handling.KEV
    77This week

Published before and after this one in the same product

  • ← EarlierCVE-2026-28905May 11, 2026 · The issue was addressed with improved memory handling.
    30Monitor
  • ← EarlierCVE-2026-28906May 11, 2026 · This issue was addressed through improved state management.
    30Monitor
  • Later →CVE-2026-28913May 11, 2026 · The issue was addressed with improved memory handling.
    30Monitor

Remediation

Which version to upgrade to

Fix versions compiled from the vendor, package registries and Microsoft. Verify the vendor's note before upgrading.

Product / packageFixed versionSource
almalinux:webkit2gtk32.52.4-1.el8_10 · AlmaLinux:8Package registry (OSV)
almalinux:webkit2gtk3-devel2.52.4-1.el8_10 · AlmaLinux:8Package registry (OSV)
almalinux:webkit2gtk3-jsc2.52.4-1.el8_10 · AlmaLinux:8Package registry (OSV)
almalinux:webkit2gtk3-jsc-devel2.52.4-1.el8_10 · AlmaLinux:8Package registry (OSV)
debian:webkit2gtk2.52.5-1~deb13u1 · Debian:13Package registry (OSV)
debian:wpewebkit2.52.4-1 · Debian:14Package registry (OSV)
opensuse:webkit2gtk32.52.4-160000.1.1 · openSUSE:Leap 16.0Package registry (OSV)
opensuse:webkit2gtk3-soup22.52.4-160000.1.1 · openSUSE:Leap 16.0Package registry (OSV)
opensuse:webkit2gtk42.52.4-160000.1.1 · openSUSE:Leap 16.0Package registry (OSV)
red hat:webkit2gtk30:2.52.4-1.el8_10 · Red Hat:enterprise_linux:8::appstreamPackage registry (OSV)
red hat:webkit2gtk3-debuginfo0:2.52.4-1.el8_10 · Red Hat:enterprise_linux:8::appstreamPackage registry (OSV)
red hat:webkit2gtk3-debugsource0:2.52.4-1.el8_10 · Red Hat:enterprise_linux:8::appstreamPackage registry (OSV)
red hat:webkit2gtk3-devel0:2.52.4-1.el8_10 · Red Hat:enterprise_linux:8::appstreamPackage registry (OSV)
red hat:webkit2gtk3-devel-debuginfo0:2.52.4-1.el8_10 · Red Hat:enterprise_linux:8::appstreamPackage registry (OSV)
red hat:webkit2gtk3-jsc0:2.52.4-1.el8_10 · Red Hat:enterprise_linux:8::appstreamPackage registry (OSV)
red hat:webkit2gtk3-jsc-debuginfo0:2.52.4-1.el8_10 · Red Hat:enterprise_linux:8::appstreamPackage registry (OSV)
red hat:webkit2gtk3-jsc-devel0:2.52.4-1.el8_10 · Red Hat:enterprise_linux:8::appstreamPackage registry (OSV)
red hat:webkit2gtk3-jsc-devel-debuginfo0:2.52.4-1.el8_10 · Red Hat:enterprise_linux:8::appstreamPackage registry (OSV)
red hat:webkitgtk40:2.52.4-1.el7_9 · Red Hat:rhel_els:7Package registry (OSV)
red hat:webkitgtk4-debuginfo0:2.52.4-1.el7_9 · Red Hat:rhel_els:7Package registry (OSV)
red hat:webkitgtk4-devel0:2.52.4-1.el7_9 · Red Hat:rhel_els:7Package registry (OSV)
rocky linux:webkit2gtk30:2.52.4-1.el8_10 · Rocky Linux:8Package registry (OSV)
suse:webkit2gtk32.52.4-160000.1.1 · SUSE:Linux Enterprise Server 16.0Package registry (OSV)
suse:webkit2gtk3-soup22.52.4-150600.12.68.1 · SUSE:Linux Enterprise Module for Basesystem 15 SP7Package registry (OSV)
suse:webkit2gtk42.52.4-160000.1.1 · SUSE:Linux Enterprise Server 16.0Package registry (OSV)

Exploit status

No known public exploit

No public exploit has been observed yet. That doesn't mean you're safe, only that the bar is a little higher.

Research context

For pentesters and researchers: attack profile, score disagreement, timeline, patch commits, credits, variant and chain candidates, bug bounty scope. All derived from existing data; no exploit code.

Timeline

From publication to today: proof of concept, Metasploit module, CISA KEV and fix record. Dates are as reported by the sources.

No dated events beyond publication.

No history yet (it accumulates with the daily EPSS job).

Patch and commit links

Commit, PR and diff links among the references. A starting point for patch-diffing and variant hunting; fixes, not exploits.

No commit or PR link among the references.

Credits

All researchers

Finders, reporters and analysts named in the CNA record. Click a name for that researcher’s other records.

No credits in the CNA record.

Variant candidates

Same product, same weakness class, within 18 months. If the patch missed the root cause, the sibling bug is here.

  • CVE-2025-43347238 days apartThis issue was addressed by removing the vulnerable code.
    39Monitor
  • CVE-2025-43234286 days apartMultiple memory corruption issues were addressed with improved input validation.
    39Monitor
  • CVE-2026-3986849 days apartThis issue was addressed with improved input validation.
    36Monitor
  • CVE-2025-31281286 days apartAn input validation issue was addressed with improved memory handling.
    36Monitor
  • CVE-2026-4372449 days apartThe issue was addressed with improved input sanitization.
    31Monitor
  • CVE-2025-43372238 days apartThe issue was addressed with improved input validation.
    31Monitor

Chain candidates

An authentication bypass and a privilege-requiring bug in the same product, published close together: combined they may become an unauthenticated path.

—

Bug bounty scope

No known public program.

Source: bounty-targets-data (public HackerOne, Bugcrowd, Intigriti, YesWeHack listings).

National notice (Türkiye Cybersecurity Directorate / USOM)

Official security notices citing this record; remediation advice is on the agency's page.

All national notices →

Technical details

Attack conditions

  • Anyone who can reach it over the internet can trigger it.
  • No account or password is required.
  • A user must open a link or visit a page.
  • No special conditions are required; it is repeatable.

If successful

Confidentiality
high · data can be read
Integrity
high · data or configuration can be modified
Availability
none
Attack vector
Network
Attack complexity
Low
Privileges required
None
User interaction
Required
Scope
Unchanged
Confidentiality impact
High
Integrity impact
High
Availability impact
None

Weakness class (CWE)

CWE-20 · Improper Input Validation

CVSS vector

CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:H/I:H/A:N

nvd-secondary

Attack context

MITRE CAPEC attack patterns and ATT&CK techniques for this weakness class (CWE). A starting point for detection rules and threat hunting.

Change log

  1. Fix✗ → ✓

For records you follow, these changes also arrive as notifications. →

References

Show all references (6 more)

Vendor advisories and official records. Exploit/PoC links are deliberately left out.

All records