CVE-2026-43708 | The issue was addressed with improved input validation. This… | CVSS 4.3 MEDIUM

Description

The issue was addressed with improved input validation. This issue is fixed in Safari 26.5.2, iOS 26.5.2 and iPadOS 26.5.2, macOS Tahoe 26.5.2. A malicious website may exfiltrate data cross-origin.

Metadata

CVE ID: CVE-2026-43708
State: PUBLISHED
Assigner: apple
Reserved: 2026-05-01 22:46 UTC
Published: 2026-06-29 19:42 UTC
Last updated: 2026-06-29 21:30 UTC
Primary CWE: CWE-20
CWE-20 Improper Input Validation
Vendor / Product: Apple / Safari
Sources: cve.org · NVD

Severity & Metrics

4.3 MEDIUM CVSS 3.1

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

SSVC — CISA Coordinator

Exploitation: none
Automatable: no
Tech. Impact: partial

Affected products (3)

Vendor	Product	Platform	Versions
Apple	iOS and iPadOS	—	0 < 26.5.2
Apple	macOS	—	0 < 26.5.2
Apple	Safari	—	0 < 26.5.2

Weakness (CWE)

CWE	Source	Description
—	cna	A malicious website may exfiltrate data cross-origin
CWE-20	adp	CWE-20 Improper Input Validation

CVSS scores (1)

Score	Severity	Version	Source	Vector
4.3	MEDIUM	3.1	adp	CVSS:3.1/AV:N/AC:L/PR:N/UI:R/S:U/C:L/I:N/A:N

References (3)